The act of farting under cover, (many times) or blanket and releasing it on an unsuspecting victim.
I waited for my mom to come home, and right before she got into bed, I pulled a grenade and ran away. She came back screaming, "you nastymother-fucker!"
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
A compact device usually filled with peices of metal (called Shrapnel, they explode outward and cut up anything that gets in their way) with gunpowder and fuse. Pulling the pin will result in the grenades explosion within 3 to 5 seconds depending on the fuse length. Most deadly against ground infantry. Also comes in Anti-tank (known as a Sticky Bomb) variety