(_!_)      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