Large caliber handgun, usually magnum catridges, such as .357 Magnum, .44 Magnum, .50 Action Express, .454 Casull. Also, commonly in reference to revolvers.
"Marvin, why didn't you tell us there was a guy in the bathroom with a handcannon?!?" - Vince, Pulp Fiction
When having sex with a woman, the man tells her he is going to ejaculate on her face. He asks her to close her eyes, when she does, he punches said woman in the face.
A hand cannon was the mother of all fire arms . It was simply a metal pipe that had gun powder put down it and a rock , or lead ball. It was fired by a piece of flaming rope put down in a open hole.
Short-barrel shotgun (Around 10-12") with a pistol grip. Usually made from cheap breech-load single or double barrel shotguns. (Over-Under models are also used.)
Jonsaid he carried a gun, but not anything as formidable as a hand cammon!
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."