To shoot oneself in the mouth; to commit suicide.
I told Koree to go eat a gun after he said he liked Green Day.
by Irish Eric August 27, 2008
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to complete the whole thought that you are trying to get across. Adding this nonsense just adds to the confusion when people don't really get what you are saying.
Bob " yo man ,you see that dog that just ran out and the light that came on and the wild stuff in australia "
Jim "dude, what the fuck are you talking about, are you wasted??"
Bob " man....eat, gun, drugs"
by LeeAwesome October 10, 2008
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Putting the barrel of a gun inside your mouth and shooting it.

Another way of committing suicide
The police showed up to the house to find that Mike was eating the gun.
by Skate_fast_eat_ass__ August 2, 2018
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