A dumbfuck or douchebag. A general arsehole & noob who does nothing but walk into trouble, won't get laid and who drives a shit car.

a parachuting nazi, normally strapped up to the teeth.

A piece of wood shaped like the stock of a rifle, with a horizontal bar projecting from one side. It magically turns semi-automatic weapons (those which fire one bullet per pull of the trigger) into bullet-hoses; a device which uses the recoil of a gun to fire the next round.
One of many ways to turn your shitty california-legal semi-automatic AR-15 into a machine-gun. Very popular in US states where semi-automatic rifles are legal; chiefly used by man-children and 13-year-old boys. On the down-side, it seriously impedes accuracy, and thus is useless for criminals.

Contraction of "Do you want some?"; are you starting?. starting a fight. Normally yelled by hooligans.

A contraction of "you're jealous". Popularised in late 2010 alongside a macro of a man grinning. Sometimes written in greentext as "you jelly".

A type of spot that is hard on the outside, but when you squeeze it it makes a cracking noise and a bit of cheesy shit comes out.

An overweight, chain-smoking, muscular Polish gangster who has immigrated to the UK. Also know as Polski Beefcakes. They are known for walking around in packs, smoking, drinking large quantities of Tyskie and beating the shit out of chavs who attack them.