Au, the international word for peace. Said as one holds their left hand in front of their heart region, fingers extended and plam towards the body, and "sweeps" in down in front on them (only a simple wrist movement is required).
Hey dude. Au
by Poon-master Phoenix September 02, 2003
by WordGenie April 15, 2004
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'
by phxn.howler February 19, 2017
Stands for Athletics Union in universities. Many people refer to certain night outs as AU night which is a night where members of sports clubs dress up to go out.
by Louisa26 February 09, 2018