Well...where to begin? If something rocks ass it usually means it is very good or great (sometimes grand). However, it may refer either to a homosexual man or woman in a manner i do not wish to discuss. When using the term, rocks ass
, keep an open mind and be aware that people may take it the wrong way. Be sure to give a chuckle directly following the phrase and never wear a backwads hat while using it. If used correctly, it can be the life of the party!