1) When something has been going exceeding well only to then run its inevitable course and either decline or fail altogether; a market correction.

2) a term adopted in business to describe an event that is currently faultering or failing or has the potential to do so.

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."

Usually when a person stands within the confines of your personal space, sometimes without knowing it. Telling them that they're bursting your bubble can be a nice gesture to get them to back off.

If the creeper commits a second offense it's all fair game for hostility.