I guess it don't really got a definition. It's a random word it can be used 4 anything! Heres a few examples...
1) your msn screenname
2) To shut someone up when your having an arguement
3) a nickname 4 sum1
4) a cocktail
5) a greeting ie. hello, goodbye
6) a screenname for a site ie facepic/party
7) a possible new line of clothing?
8) when theres nothing else to say...AYPA!
" You can't argue with that, you know I'm right!"
" ya well.... AYPA!"

or

" So what should we talk about"
"aypa"
by Jesus April 22, 2003
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