1 definition by TheJackMann

Stands for Instant Giblets, referring to one-hit kills in FPS games where the victim is instantly turned into 'giblets', or explodes.

Originated in Quake II and made popular in Unreal Tournament.
I took out my instagibbed rifle and limbs started flying when I started gibbing all around.
by TheJackMann June 22, 2014
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