When you're in the shower and you have to poop—Instead of getting out, you poop in your hand, pull back the shower curtain, and toss it in the toilet.

When you eat dirt for the first time and leave your family to build a shack in the woods

The act of shoving one's grenade-resembling hand into a man or woman's orifice and then opening it with fingers flailing wildly in a mock explosion.

Grenading is a word used to describe an object or a piece of machinery suffering a catastrophic failure. And often refers to the breaking apart and projection of components, or fragments thereof, away from the failing object or machinery in a fashion similar to a fragmentation grenade