One who buys an extra litter bottle of milk when sent to get house milk and drinks all of it on their way back from the shop. or one who sits in a cupboard with a pint of milk drinking it fast hoping he wont be caught and exposed.

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."

A derrogitory label, the 'milk chuggers' are the dorks likely to be racing one another at the cafeteria to down their milk while their voice-cracking, acne covered friends pound the table and chant "chug chug chug". This doesn't restrict the term to those who chug milk, it's more of a general vibe. They'll be the first in line to do the next brainless challenge on social media, or a daring act of public cringe.