When your ass turns into Mt. St. Helens and spews molten rock and lava from your asshole. Depending on what you ate beforehand, the pain endured can range from a mild annoyance to the equivalent of a soldering iron shoved deep into your rectum.
(Person 1 hears violent screaming emitting from the bathroom door)
Person 1: Is someone getting murdered in there?
Person 2: Nah, it's just Jim. He got diarrhea from that Taco Bell he had earlier.
Person 1: Ah.. Poor Jim. :l
by DeviousPancake November 28, 2010
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Poopy shooting out of the butt at high velocities in a liquid state. Smells too
When you're playing with you monkey and you feel something funny, Diarrhea!
by CommunistWithAGun January 1, 2004
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The brown, and very gooy version of shit that comes out when food is rushed out of your body, usually from overeating fast food like Burger King/McDonalds. Oftentimes known to come out when trying to fart, other times without warning.
After I ate at Burger King, I had a bad case of diarrhea.
by Shredder November 1, 2004
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When an uncontrolled liquid waste squirts out of the anus and creates a smelly mess.
Chad : Wow Kiersten your hair is so silky & it smells so good!
Kiersten : Oh Chad your making me wet!
Steve : Outta my way people I got Diarrhea!
Chad : Well that smell killed the mood!
Kiersten : Yeah and he got Diarrhea all over our shoes!
Chad : Hey asshole get over here Now!
Steve : Yes Boss!
Chad : Clean up your mess!
Steve : Ok! MMMMMM! MMMMMM!
Kiersten : Oh My God That's Disgusting!
Chad : Uh you missed a spot!
Steve : MMMMM!
Chad : Don't forget the trail you left on the floor too!
Steve : No problem I just love the taste of Diarrhea!
by SlopNChop April 25, 2017
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When you truly feel like you have died in the rear.
I had that awful dieArear last night!
by cathieD March 5, 2004
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A chemical dye that is found in over ninety five percent of all cosmetic products.
Alex Trebek : "For eight hundred dollars. . .this chemical dye is found in over ninety five percent of all cosmetic products."
(Peter quickly buzzes in.)
Peter Griffin: "Diarrhea."
(The audience laughs.)
Peter Griffin: "What? Oh oh oh, sorry. What is diarrhea?"
by A1 December 3, 2004
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When your bowels are irritated and you pretty much vomit liquid shit out of your ass.
Main causes are bad food (fast food or foreign food) or illness.

This is a terrible symptom of gastroenterital problems, and makes you feel like your ass is on fire.
Finn was sitting in class, when suddenly ha stomach rumbled. He looked around, but everyone was focused on the Spanish lecture. Finn tried to ignore it, but his stomach gurgled again, and he knew he was going to have diarrhea.
He squeezed his butt checks together, in an adequate attempt to hold in the liquid shit threatening to erupt from his ass. After class, his girlfriend Brianna tried to catch up with him.
"Are you busy, Finn?" she asked with that sexy and seductive smile he loved so much. Finn nodded, in too much ass pain to speak. He made his way to the car, unaware that plenty of girls were staring at his ass, squeezed so it looked almost small.
When he got home, Finn barely had enough time to get to the porcelain pot before his diarrhea erupted. It was painful, like lava spewing out of his butt. The smell was like raw sewage, which it coincidentally was.
Finn was on the toilet for hours. Finally, his stomach was empty of the shitty mud, and he collapsed. It was 10 PM, and he was practically falling asleep in the putrid aroma of his own shit.
'God,' he thought. 'That Mexican food was not a good idea. I guess today wasn't the best lunch day.' Maybe tomorrow would be better.

The next day, Brianna approached him after school again. "You look perkier. You wanna come over to my place for some FUN?"
Oh yeah. Today was going to be much better.
by TDav284LuvsGlee June 23, 2015
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