bung hammer 

A tool used to pound the wood barrel plug closure, commonly known as a 'Bung,' into place.

The barrel was filled then the bung hammer was used to beat the plug into the bunghole.

bung hammer by themagichat September 3, 2019

bung hammer 

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.

Johnny hit me like a bung hammer, I can barely walk.

bung hammer by Dean Stymie July 26, 2018