Abbreviation for American University, A school of highly affluent, overly intellectual, and often-times pretentious students. It is not uncommon to be sitting in an AU classroom and have a prince, the daughter of a Fortune 500 CEO, and an ambassador'sson within a 4-foot radius.
American University is world-renowned for its top-rated School of International Studies.
AU is a shorter way of saying alternate universe, quite often used in fanfiction. Normally the writer takes a famous person and makes them non-famous, or 'normal'
The word 'Au' Originally comes from the Maori Languge (of New Zealand) meaning 'friend' or something similair.
It's used at the end of any/every scentance to round it off...usually used by "New Zealand Gangsta's"
WCC Member1:Where the fuck have you been, au!
WCC Member 2:I just been wit my missus- mind your own business, cunt. You got some cock to talk to me like that, au.