1)the act of smashing a frog with a hammer in order to release the mystical spirit of the god "Smalgnaphin"master of all things salty.
2) a curse used by the indigenous African tribe "Piko Piko" as an alternative to the word "fuck",having just been introduced by Scottish sheep herders looking to expand there grazing land.
Another way of calling someone a tool, however as a tool is a useful item this could be construed as a compliment. A foam hammer on the other hand is a tool that would be completely useless.
The name given to a muscle bound gay guy who is known for really pounding down his unsuspecting mate. A bung hammer normally does not know their own power and activity may lead to hip displacement.