Flaming liquid shit that makes you scream with pain, clench your teeth, grab hard onto the nearest solid object so that you don'tget blown away, and wonder how you're still alive when it's over.
My diarrhea is so bad that I couldn't walk for five days afterwards.
After what seemed like hours of stomach cramps at school, Jason was finally able to go home and launch his lava-like diarrhea into his beautifulporcelain throne.
Random: Do farts have lumps?
Me: Na dude, I think you just diarrhea'd
Random: Mate, diarrhea doesn't have a verb form
Me: I'd be more worried about that shit running down my leg if I were you.