Everyone has seen those emoticons that indicate an emotion via a few keyboard characters.
:) for a smile and :( is a frown, with some variations like :-) or :-( or that winking ;-}
I got my first emails recently using "assicons" that represent various types of - well, asses.
I don't know that they will catch on as much as the other emoticons, but, just to keep you informed...
(_!_) a regular ass
(__!__) a fat ass
(!) a tight ass
(_*_) an ass hole
(_o_) an ass that's been around
(_x_) kiss my ass
(_X_) leave my ass alone
(_zzz_) a tired ass
(_E=mc2_) a smart ass
(_$_) has money coming out of his ass
(_?_) Dumb Ass