Loose Cannon

A premature ejaculator; No safety on his gun.

Since he had a loose cannon, he blew his load in his pants.

by Dome Froggie January 06, 2008

Loose Cannon

A penis that has a premature ejaculation problem;
Having no safety on his gun

Lucas has a loose cannon. He was hooking up with this one chick and he blew his load in his pants.

by Dome Froggie January 08, 2008