In a FPS game when you cook your grenade to the point where you end up blowing yourself up, and one or more of your opponents. It may be the ultimate sacrifice but few people expect you to commit suicide just to get a kill.
Pro: *player runs around corner with grenade in hand

Noob: *player starts to shoot

Pro: "FTW!!!"

BOOM!

Pro: " BONZAI KILL MOTHERFUCKER!!!!!"
by Talks Without Any Thought January 12, 2011
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