behave - Normally pronounced 'bee-ave'. Meaning 'sort yourself out', 'stop being silly', etc. Can be used aggressively as if to say 'stop doing that, or else'.
Illegal and Dodgy
bent - Crooked, illegal.
moody - Stolen.
spurious - Not real, dodgy.
Money
grand - One thousand pounds.
k - A thousand pounds.
large - A thousand pounds, e.g., "Ten large to help the situation".
bookie's - An abbreviation for bookmakers (betting office).
Insults and Swear Words, etc.
bollocks - Very common swear word in the UK meaning testicles. Often used to mean 'nonsense'.
c**t - Seen as the strongest swear word in the English language.
wanker - Idiot, despicable person. Literally means to masturbate.
pikey - A highly offensive term for a gypsy or vagrant. Comes from the 'Kentish' dialect word 'pike' meaning 'toll-gate'.
rascal - Troublemaker, sometimes used affectionately for a 'lovable rogue'.
mucker - Friend / mate.
son - A very common term of address for any male.
Drugs and Substances
disco biscuits - Ecstasy (the drug).
black stuff - The Irish stout Guinness.
Phrases and Expressions
bet your bollocks to a barn dance - Similar to 'bet your life' or 'bet your arse'.
taking the piss - Extremely common term for 'making fun of'.
who took the jam out of your doughnut? - Who spoilt your fun?
Miscellaneous
clocked - To see / be seen. e.g., "Shit, we've been clocked!".
funky - Smelly.
goody gumdrops - Sarcastic usage of the childish phrase, expressing pleasure.
grasses - Informers.
Jacob's - Rhyming slang for 'Jacob's Cream Crackers' - 'knackers', meaning testicles.
minerals - Testicles, from the rhyming slang term 'Family Jewels' (pronounced "jawls") = 'balls'.
mickey mouse - Fake.
next time I'm climbing off your mum - Offensive statement indicating that you've had sex with their mum.
porky pies - Lies.
shite - Northern dialect version of 'shit'.
schtrops - (Yiddish) Useless, not worth the time.
tip-top - Great condition. Archaic upper class term.
tucked up - Conned, tricked.
Yardie - Jamaican gangster.
Violence and Crime
drip dry 'em - Could either mean leaving someone out to dry or reference cutting the throat of a victim and draining the blood.
grainers - Illegal street drugs, especially those sold in small quantities or doses, often referred to as "grains."
melee - A chaotic, close-quarters fight involving many people.
