Plastic gangster

Some little mug that thinks he's proper hard.

Regularly gives it the big'un but when it comes down to it he's all mouth and no bollocks.

Man 1: "is that geezer a bit of of a hard nut then?"

Man 2: "nah mate, he's nuffin but a plastic gangster"

Twos

When a cigarette is shared and smoked equally by two persons.

Bob: "gimme a cigarette mate"
Fred: "this is my last one, but I'll twos you up on it"