1)When a person takes a shit so hard or fast that they think the toilet bowl is going to explode with their shit.
2)When a person shits in an exceptionally short amount of time.

The act of of squeezing your turdcutter with so much force the poop flies out and makes a splashdown in the toilet/urnal.

when you really gotta take a crap but you hold it in extra long and when you get to the bathroom your crap is been ready and waiting. normally power shits are quicker than normal dumps.

batteries, or the energy contained in a battery. (countable)

When you take a shit, and while still on the can, jerk off. It's best to wait until the shit has left your body before you begin yankin'. This maneuver is a real time-saver. It works best if you can manage to bring a laptop or other source of porn in to the bathroom with you.

A simple procedure to maximize shit velocity and efficiency.

Steps:
1. Clench (Anus)
2. Tense (Abdominal Muscles)
3. Push (Whilst Tensing and Clenching)
4. Release Force (Continually pushing though the entire process)

Taking a normal shit except you push extremely hard to get it out as fast as possible.