1. The kind of dump that if at work going to the handicap stall is a must as the bars are needed for extra grip. 2. A massive explosion of fecal matter that splatters the porceline toilet and shoots up towards your balls, vagina or butt. 3. A dump that when completed is well worth bragging to your friends.
Tyrel: Where were you for the last hour?
Jebadiah: I was in the male restroom taking a massive power dump. Dude you should have seen it!
Tyrel: That sounds awesome!
you know when you have to take a huge dump that youve held in for hours and then you take a poop and and it comes out like rapid fire and gets you wet. usually followed by a wet bumbum or ballsac and a really good feeling like the weight of the world has been lifted of your shoulders.
dude i ate that bag o pretzels and like 3 hours later whaddyaknow i took a huge powerdump.
Bowel movement which travels at extreme speeds; Aided by compressed gas behind the feces, producing a rocket-like display of power; Known to rattle the pipes as it's flushed.
It hurts so bad to hold this in. I just know it'll be a powerdump!
A sort of "atomic" shit delivered en force from an elevated position. Often performed by standing with feet on the crapper, and bracing hands on the wall.
"Holy shit, what happened in here?"
"I took a powerdump"