Jake boys means the police. As most police officers are white and a stereotype that white boys are called Jack, Jake and etc.

You would of heard this in grime or UK drill music, such as 67 and SL.

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."

n. 1. The only boy who knows how to hold your hand.
2. Makes your stomach turn with butterflies.
3. The realize why you're smiling right now.
4. A name that comes out when the alcohol goes down.