1) any sort of ass or back end of a large hairy being
2) a word that can be said at any occasion, to mean anything at all
3) used to make the sayer happy or laugh, "aylss" can be said at any time
1: What a humongous aylss that lunchlady has, and look at the panties she uses to cover it.
2: aylss aylss aylss aylss aylss(simple as that)
3: Eat my dirty aylss you whore
by vincent April 09, 2003

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