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.
by Jajoo July 29, 2015

by supertavs July 28, 2015

When two high school girls are in a fight, and one pulls out her tampon and flings it like a grenade at the other.
"Hey Mark, you hear about that fight earlier?"
"Yeah man, I heard Suzy used the ol' Crimson Grenade on that bitch"
"Yeah man, I heard Suzy used the ol' Crimson Grenade on that bitch"
by Rk1859 July 29, 2015

When I was a sophomore these 2 girls got in a fight in my Spanish class and it escalated to the point where the one girl realized her best option was to take out her tampon and throw it across the room - otherwise known as 'firing the Crimson Grenade'
by Sordid Shuang July 29, 2015
