when u r doing a girl doggy style and u r nailing her so hard her head hits the headboard and knocks her out. then you proseed with a hairyballsagna while she is still knocked out.
''I was doing the dirty erway on this ho so hard i gave her a long deep thrust and knocked her the fuck out. what i didn't know was that she was on her period. so i slapped a hairyballsagna on that little ho".