The act of removing one's tampon and throwing it at or near a victim.
"Dude, Jenny pulled out her tampon and threw a crimson grenade in the middle of her fight with Becky!"
by Sherlock Holmeslice July 11, 2015
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The act of taking a bloody tampon and throwing it at another individual.
Cedric got hit with Crimson Grenade yesterday at the GWAR concert.
by rhaegaltargaryen July 10, 2015
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A fighting move when a female pulls out a tampon out of her vagina and throws it at the opponent.
My favorite part in the fight was when the crimson grenade left a penis-shaped bloodstain on the dress.
by Nuke Mook July 13, 2015
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When a woman pulls a used tampon out of her vagina and throws it in self defense.
- That woman just threw her tampon at a purse snatcher!

-Wow. She did the Crimson grenade method.
by SgtPeppers July 12, 2015
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A used tampon which has been removed from a woman's vagina for the purpose of throwing (often as a weapon in a fight).
Becky and Tammy were fighting over some pointless bullshit when Tammy reached into her Spanx and pulled out a drippy Crimson Grenade. She flung it at Becky, but it missed and stuck to the wall.
by hapas is the bestes July 11, 2015
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When a menstrating girl is in a fight and throws her tampon at her victim. This is an attempt to stun her victim and achieve the upper leg.
"Shit when Jenny used the crimson grenade on Ally we all knew the fight was over."
by Jajoo July 11, 2015
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