it is a continuation of the fag game; you stretch your sack out through your fingers and mention something about your chewing gum... it is vital that you say something odd enough to make someone look at it.

The act of extreme masturbation. You must "knock one out" whilst in close proximity to any of the following; Your mum, a nun, your boss, a member of parliament, George Michael. A person with capabilities to act upon catching you mid self-abuse obvisouly ups the ante. Ejaculation must be reached before your danger wank target comes (no pun intended) to investigate. The higher the chances of being discovered with one's pants down, pulling one's war face is obviously where the danger comes from. The more danger involved the harder (or softer) it is to complete the task in hand (snigger). The more dangerous the better. The chance of being arrested, pummeled by an angry father or having your hand severed by an arab's sabre means that you are a pro "Danger wanker."

When a dude is wearing short shorts at the pool and has a little nut sack hanging out.

This refers to a girl with a large labia

Chewing gum is a type of candy that can also somehow be good for your teeth? Yea I don't get it either. Chewing gum can also be used as a cheap laxative if you chew too many.

code term for smoking weed