I'm a (_E=mc2_)

(_!_) a regular arse   (__!__) a fat arse   (!) a tight arse  (_*_) an arsehole {_!_} a swishy arse  (_o_) an arse that's been around

(_x_) kiss my arse  (_X_) leave my arse alone  (_zzz_) a tired arse   (_E=mc2_) a smart arse   (_$_) Money coming out of his arse  

(_?_) Dumb Arse