southern or ghetto slang for butt or gluteus maximus. Also used as an insult though said with tone that lessens the blow. Term also used when someone is admiring another's bum, in order to emphasize excitement upon viewing.
upon seeing a good friend, most likely either an Irene or Aaron or Clay.."Hey AEYASS"
or
well-endowed girl walks by so guy says "dayum look at that aeyass"
or

speaking of to a jerk after they have said something "ok AEYASS"
by Hallerin S October 28, 2009
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