When a man places his erect penis on a solid surface, typically a counter
top, and his
lover repeatedly slams their forhead on the engorged member until
said member is flaccid. Also used to treat erections lasting more than four hours.
I popped a viagra and my
dick was still
hard four hours later, and thank the lord my
tranny girlfriend knew of the memphis meat tenderizer, therefore avoiding a trip to the emergency room!