A dictionary of slang - "L" - Slang and colloquialisms of the UK.

la	Noun. A form of address unique to Liverpool. Its prevalence is generally perpetuated by stereotypical 'scouse' impersonations by outsiders; younger generations from Merseyside tend not to utilize this expression. Pronounced lah.
labs	Noun. Abbrev. of labia.
lace into	Verb. To attack, either verbally or physically.
lacky-band	Noun. A corruption of the words elastic band.
lad	Noun. Penis. Affectionate use. E.g."I'm going to the clinic this afternoon, my lad's not been right after that shag with your sister."
laddette	Noun. A female equivalent of a male who might be considered 'laddish'. Such characteristics might be confident, brashness, loudness, sexism, enjoyment of drinking etc.
laddish	Adj. Of or like the characteristics of a young man or lad, often loud, macho, arrogant and sexist.
ladyboy	Noun. A male to female part transexual. [Orig. use from East Asia?]
lady garden	Noun. The female pubic area, the vagina and pubic hair.
Lady Godiva	Noun. A five pound note. Rhyming slang for fiver. [Mainly London use]
Lady Muck	Noun. The female equivalent of 'Lord Muck'.
lager boys	Noun. Young men who over-indulge in alcohol and consequently become loutish.
lagered (up)	Adj. Drunk, intoxicated through the use of lager.
lager lout	Noun. A young person whose anti-social behaviour is primarily instigated by the excessive drinking of alcohol. {Informal}
lagged /laggered	Adj. Drunk, intoxicated with alcohol. [London use]
laik	Verb. To play. Also leck. E.g."Are your two brothers laiking out this afternoon, because I've got a new football for my birthday?" [Yorkshire use]
lairy	Adj. 1. Knowing, conceited. 2. Cheeky or brash. * Also spelt leary. 3. Flashily dressed. [Orig. Aust.]
la-la-land	Noun. The hypothetical place where one is out of touch with reality, often after the excesses of alcohol or drugs. E.g."Don't bother calling Pete; ever since his drug binge last night he's in la-la-land". [Orig. U.S.]
lambchops	Noun. Sideburns. From their shape?
lamp	Verb. To hit, to clout. E.g."I can't believe she lamped him. Just for coming home drunk."
langer	Noun. 1. Penis. [Irish use] 2. A contemptible person, an idiot. [Irish use]
langered	Adj. Drunk, intoxicated.
Lanky	Noun. 1. The county of Lancashire. 2. The dialect of the county of Lancashire.
lanky streak of piss	Noun. A tall, thin person. Derog. [Northern use]
lardarse	Noun. A fat person. Cf. 'tub of lard'. Derog. [Orig. U.S.]
large	Adj. Excellent. See 'have it large'.
large it	Verb. To be enthusiastic. See 'have it large'.
lark	Noun. An activity one considers a waste of time. E.g."I'm not at all comfortable with this abseiling lark; the climbing up is alright but coming down backwards, now that's stupid!" {Informal}
Larry Lightweight	Noun. 1. A person who is easily intoxicated by alcohol or drugs, having low tolerance to intoxicants. Derog. 2. A person, who against the desires of others, has no ability or wishes to maintain an activity and gives up prematurely. Derog.
lash	Verb. To discard, throwaway. E.g."I'm going to lash those old boots, they're letting in water." [Merseyside use?]
lashed (up)	Adj. Drunk.
Later(s) !	Exclam. Goodbye! Derived from see you later or catch you later. [1990s]
laughing boy	Noun. A sardonic nickname for a male who looks miserable. E.g."Cheer up laughing boy, it's not the end of the world."
laughing gear	Noun. The mouth.
lav	Noun. A toilet. Abb. of lavatory. Also lavvy.
lay	Verb. To have sexual intercourse. E.g."I got a little drunk last night and got laid."
lay one on (someone)	Verb. To hit (someone).
lay some cable	Vrb phrs. To defecate. E.g."Can I get Tim to give you a call back? He's just in the toilet, laying some cable."
lazy lob	Noun. A semi-erect penis. Cf. 'lob on'.
lazz	Verb. To pass or throw. Cf. 'luzz'. [North-west/Merseyside use]
lead up the garden path	Vrb phrs. To mislead. {Informal}
leak	Noun. An act of urination. E.g. "Hold on a minute, I need to take a leak."
lean	Adj. Intoxicated with alcohol or drugs. [Mainly London use]
leathered	Adj. Drunk.
leathering	Noun. A beating. Originates from the use of a leather belt or thong to beat someone. Derived from the verb - to leather.
leave it out!	Exclam. Stop it! Stop doing that!
lech	Verb. To sexually lust. Also spelt letch. {Informal} Noun. Someone who is lecherous and lustful. Derog.
leck	See 'laik'.
lecky	Noun. Electricity. Also 'lecko'. E.g. "I'm afraid we can't invite you back, we've had the lecky cut off."
Lee Marvin	Adj. Starvin' (starving), hungry. Rhyming slang.
leftfield	Adj. Taking an unconventional view or stance. [Orig. U.S.]
left footer	Noun. A Catholic. Derog.
lefty	Noun. A socialist. Derog.
leg it	Verb. To run hurriedly. E.g."We heard the police sirens and legged it."
legit	Adj. Abb. of legitimate.
legless	Adj. Very drunk. Obvious derivation from the consequences of excessive alcohol.
leg-over	Noun. Sexual intercourse, usually in phrase 'get one's leg over'. E.g."Did you get your leg-over with that girl last night?"
lemon	Noun. 1. A fool, idiot, objectionable person. 2. A lump of excrement. Rhyming slang on lemon curd, meaning 'turd'. [1960s]
lemon and lime	Noun. Time. Rhyming slang.
lemon squeezy	Adj. Easy, simple. Either from the rhyming slang or the juvenile rhyme - easy peasy, lemon squeezy.
length	Noun. Euphemism for the penis. See 'slip a length'.
Leo	Noun. An all day drinking spree. From the rhyming slang Leo Sayer - all dayer. Leo Sayer, a British pop music artist during the mid 1970s.
lesbo	Noun. A lesbian. Derog.
let off	Verb. To break wind, to 'fart'. Shortening of let off wind.
let one go	Verb. To break wind, to fart. E.g."That's disgusting! Who's just let one go?"
let (one) rip	Verb. To break wind, to fart.
lezzer	Noun. A lesbian. Derog.
lick arse	Verb. To act obsequiously, to be a sycophant. Noun. A sycophant.
lickety-split	Adv. Fast, speedily. [Orig. U.S.]
lickle	Adj. Small. A lazy or childlike corruption of the word little.
lick (out)	Verb. To perform cunnilingus.
lick (someone's) arse	Verb. To act like a sycophant. E.g."Licking the manager's arse might get you a promotion, but you'll not gain many friends."
lick up	Verb. To fawn, to be obsequious. E.g."She licked up to the teacher and got a grade A in her English language test."
(the) life of Riley	Noun. The good life. E.g."Ever since they won the lottery and have stopping working they've been living the life of Riley."
ligger	Noun. A 'freeloader', a taker of things that are freely available, especially in the world of show business or music.
lights are on but no-ones home	Phrs. Of a person, that they are alive but not in touch with reality. A catch-phrase cast at a person who lacks commonsense or whose attention has wandered.
like a bastard	Phrs. In a hurried or agitated state. E.g."I raced around the shops like a bastard, looking for a birthday present."
like a blue arsed fly	Phrs. Hurriedly and frantically. E.g."God, I'm so knackered, I've been racing around all day like a blue-arsed fly."
like a dead heat in a zeppelin race	Phrs. Of a woman, having large breasts. Cf. 'zeppelins'.
like a dog with two dicks	Phrs. 1. Sexually promiscuous, with the implication that the person cannot control their sexual appetite, having animal urges. Applied to males. E.g."Did you see Tim ogling that woman's breasts? He was all over her like a dog with two dicks." 2. Sexually excitable or excited. 3. Over excited.
like a fart in a colander	Phrs. Useless. In expressions such as, about as much use as a fart in a colander.
like a pig in shit	Phrs. Happy, contented.
like a rat up a drainpipe	Phrs. Very quickly.
like a row of bombed houses	Phrs. Of teeth, crooked, irregular, not in a good state.
like a spare prick at a wedding	Phrs. Totally useless, unwanted, and with a hint of embarrassment for being in that predicament. Often preceded with the words standing about. E.g."There I was, waiting for my date at the entrance of this packed restaurant on Valentines Day."
like flies on shit	Phrs. Used as emphasis to imply great numbers and enthusiasm, usually with depreciative undertones. E.g."She'd go into a bar and all the men would be all over her, like flies on shit."
like fuck (!)	Adj/adv. Intensely, greatly, very much, speedily. E.g."We went at the decorating like fuck, and finished the whole house in 2 days." Exclam. An exclamation of denial. E.g."Like fuck! I'm not running naked through the town centre."
like it or lump it	Phrs. An ultimatum - either like it or put up with it, but whatever, there is no choice. See 'lump it'.
like nobody's business	Phrs. Totally, quickly, very well.
like shit off a shovel	Phrs. Very quickly.
like the clappers	Phrs. Very quickly, very hard. E.g."We ran like the clappers." {Informal}
Lilly	Noun. The police. From Polari slang Lilly Law.
lils	Noun. Breasts.
Limey	Noun. An English person. Derived from the habit, on long journeys, of supplying lime juice to English sailors as a preventative against scurvy. [Orig. Aust. 1880s]
limp-wristed	Adj. Feeble, effeminate, usually applied to males, and often implying homosexuality. Derog.
line	Noun. A quantity of powdered drug, such as cocaine, that is chopped and presented as a line to be snorted.
Lionels	Noun. Flaired trousers/jeans. Rhyming slang on Lionel Blair's, meaning flairs. From the British dancer/entertainer, Lionel Blair. [1970s]
lip	Noun. Verbal impudence, cheek.
lippy	Adj. Impertinent, mouthy, cheeky. {Informal} Noun. Lipstick.
lips	Noun. The labias.
lipstick lesbian	Noun. A lesbian who prefers to wear make-up and look conventionally feminine, as opposed to 'bull-dyke' or 'diesel-dyke'.
liquid lunch	Noun. A lunch break comprising of alcohol instead of food.
little boy's/girl's room	Noun. Euphemisms for a lavatory.
little fella	Noun. Affectionate term for an ectasy pill. E.g."We cant have a good night tonight until we get some little fellas."
little man in a boat	Noun. A euphemism for the clitoris.
littles	Noun. Pills, or more commonly ectasy pills.
load	Noun. The quantity of semen that is usually ejaculated. E.g."She was so horny I shot my load just looking at her." See 'shoot one's load'.
loaded	Adj. 1. Drunk, or drugged up. 2. Wealthy.
load of crap	Noun. Utter nonsense, complete rubbish, worthless. The prefixal element load of is regularly placed before nouns as an intensifier in perjorative expressions such as a load of shit, a load of bollocks, a load of tosh. E.g."That film we went to see was a load of crap."
load of old bollocks	Noun. Utter nonsense, complete rubbish. See 'load of crap'.
loaf	Noun. Head. Rhyming slang on loaf of bread. See 'use one's loaf'.
lob on	Noun. An erect penis.
lobster	Noun. A very sunburnt person. Derog.
(the) local	Noun. One's local drinking establishment, public house, bar. {Informal}
lock-in	Noun. The time after a public house has closed when a chosen few are offered the chance to buy more drinks. An illegal activity, hence the locking of doors.
log	Noun. A lump of excrement. From its vague similarity to a to a sawn tree trunk.
lolly	Noun. Money.
long-hair	Noun. A hippy. Derog.
long streak of piss	Noun. A tall thin person. Derog.
loo	Noun. A lavatory. {Informal}
lookah	Noun. Money. It is derived from lucre, a derogatory term for profit or gain. Also spelt luka.
look at someone gone out	Phrs. Expressed at a person who responds blankly at something. E.g."Look at you gone out! What's up? Haven't you understood a word I've been saying." [Midlands/South Yorkshire use?]
looker	Noun. An attractive person.
look like death warmed up	Vrb phrs. To look very pale and sickly.
look like something the cat brought in	Vrb phrs. To look scruffy, unkempt, or in a physical mess.
look like you've been dragged through a hedge backwards	Vrb phrs. To have very unkempt hair. E.g."When was the last time he ran a comb through his hair? It looked like he'd been dragged through a hedge backwards."
looksee	Noun. A look, an inspection. Also looksy. E.g."Have a looksy at this brochure and tell me which holiday appeals to you."
loon	Noun. An insane person. Abb. of lunatic. Derog.
loony	Noun. An insane person. From lunatic. Derog. Adj. Crazy.
loony-bin	Noun. Mental institution, a lunatic asylum.
loopy	Adj. Mad, insane.
loppy	Adj. Dirty, filthy. [Yorks use]
Lord Muck	Noun. The depreciatory name for a pompous conceited man. The female equivalent being Lady Muck.
lose it	Verb. To become confused or out of control.
lose one's bottle	Vrb phrs. To lose courage. Cf. 'bottle' and 'bottle it'.
lose one's marbles	Vrb phrs. To go crazy, to lose control.
lose one's rag	Vrb phrs. To lose control in a fit of fury, to be very angry. E.g."You should keep out of Jill's way when she loses her rag; she's got a lethal right hook."
lose the plot	Vrb phrs. Be confused, to go off direction, whether with conversation or in one's activities.
lounge lizard	Noun. 1. An idle frequenter of fashionable bars. {Informal} 2. Someone who is very lazy and unenergetic.
louse	Verb. To finish a job or task. [Scottish use]
love	Noun. A friendly term of address. {Informal}
love a duck!	Exclam. An exclamation of surprise.
love custard	Noun. Semen.
loved up	Adj. 1. In love. 2. High on drugs and feeling intimate and empathetic, usually on MDMA.
love handles	Noun. An area and build up of fat on a person's waistline.
lovely-jubbly!	Exclam. Excellent! Great! A jocular expression recently popularized in the 1990s, by the cockney character Delboy in the British sit-com Only Fools and Horses. Originally from a 1950s advertisement for an ice lolly, by the name of Jubbly.
lover boy	Noun. 1. A lover, an attractive man. 2. A friendly term of address.
love spuds	Noun. Testicles.
low-life	Noun. Contemptible and despised person or persons, often with criminal leanings. E.g."I'm not going in that bar, it's full of low-life and I value my own life."
lug	Noun. Ear. {Informal}
lug-hole	Noun. The ear hole. Also lughole. See 'lug'.
luka	Noun. See 'lookah'.
lumber	Verb. To burden. E.g."What am I, a doctor? Don't lumber me with all your medical problems, go to the medical centre." {Informal}
lummox	Noun. A clumsy, stupid person. Often used affectionately.
lump it	Verb. To suffer or endure something. See 'like it or lump it'. E.g."You'll just have to lump it; being a parent isn't easy and you'll always have no time to yourself."
lunchbox	Noun. Male genitals.
lungs	Noun. Women's breasts.
lurgy	Noun. Any unspecified or indeterminate illness. Jocular use. Also lurgee. See 'dreaded lurgy'. {Informal}
lurve	Noun/Verb. Love. Humourous and intentional mispronunciation to suggest more passion and lust.
lush	Adj. Excellent, appealing, attractive. Noun. A habitual, heavy drinker of alcohol. Derog.
lusty	Adj. Sexually excited. Derived from the s.e. lust and grammatically correct adjective lustful.
luvvie	Noun. 1. An actor or actress, especially one with a flamboyant and affected theatrical manner. Also luvvy. Often derog. {Informal} 2. A form of address. From lovey. {Informal}
luzz	Verb. To pass or throw. E.g."Will you luzz me that pen and paper, please?" Cf. 'lazz'. [S.E. England use]
lychees	Noun. Testicles.