by Jeramald Peach June 11, 2006

The action of pulling the pin on a grenade and sticking it up a girl's cooch, especially if she's pregnant, thereby aborting the baby (and her, but that's besides the point).
"Yo did you hear about Stacy? I heard she got a grenade abortion."
"Bullshit, who would knock her up in the first place?"
"Bullshit, who would knock her up in the first place?"
by SurrealArt June 07, 2016
