watermelon shit 

A type of shit that feels as if you're passing a boulder. It takes a minimum of a half hour for it to come out, and it usually requires you to stretch out your asshole like Goatse and/or shake it out.

Person 1: Dude, you've been in the bathroom for an hour now.
Person 2: I'm taking a watermelon shit; that White Castle didn't agree with me.

watermelon shit by XileLord March 12, 2011

watermelon fried chicken shit

When a huge black guy in the Ghetto takes a giant dump.

Sup homie? Si's tracking down the ave when I's sees a flithy chan tigah. Sah's serious. I's gotta go down a takes me a watermelon fried chicken shit. Damn nigga!

watermelon fried chicken shit by Pollup December 25, 2007