eat one’s gun

eat (one's) gun

To commit suicide by shooting oneself in the head through the roof of one's mouth. I didn't expect anyone in the movie to die, so I was shocked when the main character ate his gun.
See also: eat, gun

eat one’s gun

tv. to commit suicide by firing one’s gun into one’s mouth. The cop was very depressed and ended up eating his gun.
See also: eat, gun