Austrialian slang for bottom, ass or a person you refer as ass.

Lighthearted abbreviation of the ever-popular English word 'bottom', used mainly in a humorous context. Can be used to literally mean 'one's bot-bot', but also subjected to frequent use as an adjective, describing physical features, clothes and unpleasant situations. It is also regularly used as an exclamation of dismay, in place of a more rudey swear word.