1 definition by Snake_doc

Top Definition
A term common among aviation ordnancemen. It means If You Ain't Ordnance You Ain't S#@!
When toasting a shot "IYAOYAS!"
by Snake_doc August 13, 2008

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug