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(v.)When you kill yourself in a game rather than letting someone kill you. Part of the Phrase When in doubt, grenade yourself out. Commonly done in Halo by noobs.
I was gonna kill him but he Grenaded Himself Out first

Grenade Yourself Out before that jerk kills you.

Stop Grenade Yourself Out or i will ban you.
by Grenade Thy Self October 09, 2011
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