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25.
A grenade is what the fat ugly bitch that is with a group of fine ass women is called. If she gets upset then it "blows up" the time for the rest of the girls in the group or the guys trying to get with them.
Dude go lay on that Grenade for us she is about to get pissy and its gonna fuck it up for all of us!
by Greatest EVR August 18, 2010
 
1.
The solitary ugly girl always found with a group of hotties. If the grenade doesn't get any action, then neither does anyone else.
"Come on man, take one for the team and jump the grenade"
by Amaris August 29, 2003
 
2.
The ugliest girl in a group of girls that are out. Her friends will not even think of leaving her unless they know she is getting action herself. Therefore, someone in your group of friends sacrifies himself by hooking up with the grenade in order for the rest to have a chance of having sex with the hot girls. More often than not, the grenade jumper gets laid and the rest end up jacking off.
It is good and honorable to jump on the grenade in order to save the platoon. Plus, you will probably get laid while the rest will not.
by TUDE August 07, 2006
 
3.
an ugly girl that is jumped on for the sake of your friends. Similar to the times of war when the enemy tosses a grenade over the lines and a comrade jumps on it to ensure teh safety of others.
You owe me dude, i jumped on teh grenade last time!!!
by pmcdon1 May 18, 2005
 
4.
A group of ugly, fat, pale, repulsive, and/or slovenly females.

The term "grenade" was coined by The Situation on MTV's infamous show, The Jersey Shore
"Hey dude, call up that fat chick you've been banging. Tell her to bring her friends."

"Sure thing bro. I guess you wanna dive on some grenades tonight too, huh?"
by Big Freeze UFL January 31, 2010
 
5.
a fugly she-beast who likes to cock block for her hot friends
By your wingman a beer cuz he will fall on the grenade for you!
by Da Nastee One May 07, 2004
 
6.
Something Bruno Mars will catch.
I'd catch a Grenade for you... yeah, yeah.
by Soup_Kitchen_Nun January 20, 2011
 
7.
a fat, butt-ugly bitch found hanging out with hot chicks in a bar and if this monster doesn't get some dick, none of her hot friends do, either
Okay, Joe, you see that group of girls over there? It's your turn to fall on the grenade.
by Nate June 04, 2003