bag ass (out of some place) andbarrel ass (out of some place);bust ass (out of some place);cut ass (out of some place);drag ass (out of some place);haul ass (out of some place);shag ass (out of some place)
tv. to hurry away from some place; to get oneself out of a place in a hurry. (Usually objectionable.)I gotta shag ass, Fred. Catch you later.