(__!__) a fat ass
(!) a tight ass
(_._) a flat ass
(_^_) a bubble ass
(_*_) a sore ass
(_!__) a lop-sided ass
{_!_} a swishy ass
(_o_) an ass that's been around
(_O_) an ass that's really been around
(_x_) kiss my ass
(_X_) leave my ass alone
(_zzz_) a tired ass
(_o^o_) a wise ass