like a tit wank but with your arse

When you think up something brilliantly righteous while baked.

When you put your dick between a girls butt cheeks and she wanks your cock using her butt.

a word that is used to describe someone acting like a total tosser and usually someone who enjoys putting strange objects up their anus. Some people are classed as bumwanks if they pluck their nipple hairs and bite their toenails.

Absolute spanner. A term used in frustration towards someone who has pissed you off.

To wipe your arse crack over your victims nose in a forward and back motion. Thus leaving a shitty smell in their nose.