(_!_) a regular ass
(__!__) 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 been around even more
(_x_) kiss my ass
(_X_) leave my ass alone
(_zzz_) a tired ass
(_o^o_) a wise ass
(_13_) an unlucky ass
(_e=mc2_) a smart ass
(_$_) money coming out of his ass
(_?_) dumb ass