Power Shit
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.
Wow, when I was taking a shit, I felt the toilet rock like there was an earthquake.
DUDE! You just had a power shit!

man that was some power shit you came out of the bathroom in 2 min