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The condition of the urgent need of a toilet because of upcoming mass defecation. The large intestine usually builds in gas pressure repeatedly, then fortunately subsides as you drive around looking for the best fast food restaurant to rush the restroom. As you park, the inevitable last build throws you from the car, you burst into a stall, and you barely drop your pants in time before the assplosion occurs. If your ass does not create a seal with the seat, the assplosion produces colorful feces all around the stall including walls, toilet, floor, and sometimes ceiling. Strangely, the toilet paper is untouched so you are able to make a clean getaway and vow never to return to that establishment. It makes for a good story every time you pass another similar restaurant.
We can't go to that Wendey's again because of the assplosion of 2011.
by urbanparker May 04, 2015
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extemely wet, violently forceful diarrhea, which explodes from from the anus in one awesome deluge.
After eating Taco Bell I had a massive assplosion.
by Bud Drayton November 13, 2002
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When your sphincter can no longer contain the gyser like forces in your colon and either matter or gas escapes in such a violent manner that it causes mass distress to everyone around.
1) I was walking by a friend's cubicle when he had an assplosion. I can still see all of my coworkers running much like Harrison Ford would run from a detonating bomb!

2) I was sitting in a stall when someone next to me assploded. The stench was so foul and the sound so wretched, I decided to just wipe later and get the heck out of there!
by Jon Sanchez September 05, 2006
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The art of projectile-style defecation. The end result is a messy, steamy, smelly possible smoke filled (we don't get it either) bathroom who's cleaning requires at least a firehose and a bucket of bleach.
Assplosions have been known to inexplicably end up on the underside of the toilet seat.

In ancient China, those capable of the assplosion were looked upon with the highest regard.

see also BM Blowout
Damn cuz, Stewart done dropped another assplosion!
by the_guy January 16, 2005
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The act of coating the back of the toilet bowl with a loud, massive blast of diarrhea.
I shouldn't have eaten all of that fried food it really upset my stomach. I had a terrible assplosion, what a mess!
by BigDongWarLord August 22, 2008
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An extreme case of diarrhea where very runny feces is excreted unvoluntarily from the anus at inconcievable speeds.
Joe: Why are you limping?
Bob: Damn, that was one hell of an assplosion!
by Jazmon May 20, 2007
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The act of imploding into one's self, then promptly exploding that out of the anus.
The assplosion of Henry rocked our group to the very core, to lose such a close member to such a tragic death.
by TheOneTrueMango November 21, 2006
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