What is Frag Grenade?
1.
The act of opening up your hand while your fist is inside of either an asshole or a vagina.
man i totally frag grenaded that chick's ass last night
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2.
A marker most commonly used to indicate where you should not be standing
rather dashing Englishman: Oh My! there appears to be a frag grenade at my feet!
Quite a proper sort of chap: Well it is rather a good job someone put that there or you wouldn't have known where you should not be standing is it not
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