Very similar to normal diarrhea but fundamentally different at the same time. At first you may be minding your own business in the men's (or women's) room taking a leak like normal. While you stand there you blow of a few farts. So you proceed to try and blow off what feels like a really big powerfull fart (the most satisfying kind) and at first it is then you feel something hit the hole that shouldn't and you have to slam the door really quick. You quickly realize that you are no longer in need of a urinal (if you're a chick then you're pretty much set)so you find a stall and get ready. You know that it's liquid ass but you don't know the severity of the situation. You start to shit, as predicted it's diarrhea. Then it gets stronger and stronger. Soon you start farting between streams. The kind that reverberate in the bowl and echo in the room. Then you start farting during the streams effectively turning your ass into the most devastating form of shotgun known to man. Then the smell hits you and you think maybe you need a bucket too. This goes on for probably 15 minutes; courtesy flushing is a must. Even if you're not in public. The smell would peel the paint from the walls and burn the toilet paper that you hopefully have a costco package of standing by.

Finally it ends and you feel relieved. The cleanup is relatively easy. You may wanna dab some water on a piece of folded TP though to put out the fire. Find some mylanta and go on with your day.
Friend: "Hey what happened? I thought you just had to piss."
You: "Sorry, I got into a fight with my intestines. It ended in explosive diarrhea."
Friend: "Explo-"
You: "Don't ask..."
by Dylanbob April 19, 2007
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The situation where too many apps are downloaded on a cell phone. (Derivation- Based on population explosion. )
Oh gosh ! Now where has that app gone ? My phone has too many apps .
My phone suufers from appulation explosion !
by Nodcrafty charlatan July 27, 2021
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A mixture of blood and semen that "explodes" when a female engages in particularly violent sex with a "delicate" male.
That slag gave me the pink explosion the other night during the eiffel tower. Fuck her, I'm never going back there!
by nana giving December 12, 2007
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The kind of crap where it comes so suddenly that it is impossible to avoid:

Symptoms: Growling of lower stomach.
Cramps.
Gas.

As soon as your ass hits the toilet, liquid shoots out like water hoes, making you feel like someone force fed you a toy and then ripped it out through your ass.

Aftermath: Wondering why the fuck are you still shitting the next two days and if there is any way to get rid of the burning.
Friend: "Why the hell were you up all night?"

You: "...let's just say WW3 was finally fought."

Friend: "...what?"

You: "I blew up their white ship, B5, with my liquid poison, E.D...also known as Explosive diarrhea. "

Friend: "You fought well my friend."
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While performing anal sex the receptive partner suffers from explosive diarrhea, resulting in a shit spray all over the penetrative partner.
Karen gave Nathan a massive chocolate explosion when they hooked up last night. She had some bad Mexican food... and he was so drunk, he didn't manage to clean himself up until this afternoon.
by res judicata September 17, 2011
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When you accidentally cum in a girl's box and you jump on her stomach to blow that shit back out.
I wasn't wearing a rubber so I had to give her the Atlanta Explosion
by Brian December 26, 2003
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Whenever that your entire penis explodes in a combustible manner
d: By posting "Penis Explosion" on Urbdic, You are endangering the human race
j: fuck you
by judgebredd April 15, 2021
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