An explosive duke that often results from the consumption of Mexican cuisine.

To forcefully release a large turd, often splashing the toilet water on your anus or testicles.

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.

Like a Power Nap, when you have no time to waste and squeeze out a turd as fast as possible. Unlike other suggestions, this dump is normally performed at work, often with the consumption of fast food.

Contrary to popular belief, a power dump is a term used when one is so busy that time cannot be wasted!
Commonly used whilst raiding in World of Warcraft, and you want to remain top of the damage meter.... I suppose it can also apply to work, watching sports... whatever.
To save valuable seconds, you go in, and instead of relaxing and letting nature do the work, you push til you're red in the face and force that shit out and 100mph!! Followed by a speed wipe, then back to doing whatever it was you're doing.

When in awkward surrounding,or in an unknown home or location and wish to be discreet about dumping to pass of you were only taking a piss not a dump, you power it through quicker than usual or under time constraints.

1. Noun
During the commericals on 24, Jack Bauer quickly takes huge shits that are both extremly quick and extremly potent
2. Verb
To take a Jack Bauer Power Dump
When out in public and you have to take a dump really bad and have to use a public toilet but don't want to spend a lot of time on the seat so you force everything out really fast.