A really mean term used by the cast of "Jersey Shore". Jersey Shore has a cast that are narcissistic, bitchy, "full of themselves", aren't even good looking people, who probably has sex with hundreds of women and men (yes I'm talking about all eight of them), and aren't educated.

A grenade is an ugly girl who hangs around a bunch of other girls.... some of the "grenades" they mention aren't even that bad looking.

This term is the reason why girls and even guys have suck low self esteem and result to suicide or depression
Hey, look at that grenade hanging with her friends
by PEACE TO EVERYONE February 13, 2011
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Slang word for anyone who has way too many piercings so that there is an apparance of all the knacks of a grenade.
Jon: Oh my God...look at that grenade.
Dark: Yea i see it.
Jon: that is nasty shit.
by ex1022 March 25, 2011
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An ugly girl of the hot friend. Usually has some unsightly repulsive characteristic such as a large nose, forehead or just plain unnatractive looks.

Gets ignored when out. Has her own male friends hitting on the hotter girl in front of her eyes and behind her back.

Grenades usually end up nowhere in life due to their unnatractive physical characteristics and lack of common sense.
That poor grenade came back to get revenge.
by your name here.., January 28, 2009
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when a girl is sucking ur testicles and she rips one off like a grenade tip.
ayeee ur girl grenaded you?
by im me. January 11, 2010
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(noun)—a lady friend of a potential conquest who blocks your advances on their friend's behalf. Please Note: a wingman may be needed to "dive on the grenade".
"There's one huge grenade launcher, there's one grenade, and then there's one cutie."—Mike "The Situation," Jersey Shore
by NEW JERSEY Diet-SHORE-nary April 13, 2011
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(noun)—a large lady, of an unsightly nature. Please Note: a wingman may be needed to "dive on the grenade".
"There's one huge grenade launcher, there's one grenade, and then there's one cutie."—Mike "The Situation," Jersey Shore
by NEW JERSEY Diet-SHORE-nary April 13, 2011
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You: WHAT ARE YOU ASKING FOR, BRUNO?!

Bruno: To give me all your love is all I ever asked... cause what you don't understand is I'd catch a grenade for you!!!
by sad88 September 8, 2011
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