Ass explosion 

When your ass literally blows up in a fiery ball of shit, flames, and intestines.

Jessica: Was that a bomb?
Chris: No. I had a bit of an ass explosion. I hate when my ass fucking explodes!!

Ass explosion by NaziFucker June 4, 2019

ass explosion 

The results of eating at a cafeteria in any of the SUNY schools. Explosive Diarhea.

"God, I only hade enough time to get back to my room before I had to let my ass explode."

ass explosion by Nickaliss March 29, 2004

ass explosion 

There are 10 things that can cause an ass explosion:

1. Laxatives
2. Food allergies/intolerances
3. Medication side effects
4. Oily/greasy food
5. Eating too much plant fiber
6. Infectious diseases/food poisoning
7. Exposure to certain toxins
8. Chronic gastrointestinal conditions (IBS for example)
9. An imbalance of gut bacteria
10. Over-eating
11. Hormonal fluctuations (females)

Generally, you can tell if an ass explosion is going to happen, symptoms include:

Gas
Gurgling in the lower abdomen
Pressure behind the asshole that feels like something solid is trying to get out
Bloating
Slight abdominal cramping

Shit, I ate too much. I'm gonna have an ass explosion on the toilet later. Gross!

ass explosion by Failurebitch May 28, 2023

Lava ass explosion 

When you immediately sit down on the toilet and your ass explodes like a volcano.

After eating Taco Bell I barely made it to the bathroom with a severe case of lava ass explosion.

Lava ass explosion by Joey Norris January 4, 2019

Guy Fieri's Giant Ass Explosion Dramatica 

The brutalist, most ear piercing, intense music you will ever hear in your entire life.

Guy 1-Yo i cant wait for Guy Fieri's Giant Ass Explosion Dramatica' new album "duct taped to a moose('s cock)!!
Guy 2-I know i cant wait to hear such classic songs as barftrails, and cellino and barnes.

Guy Fieri's Giant Ass Explosion Dramatica by gfgaed February 14, 2009

Ass Expansion Project 

The first project initiated by a newlywed wife. All the weight that was lost first to secure a steady relationship, then to look good for the wedding is added back on with a six week time period. After the sixth week the ass grows until the wife starts having to wear sweatpants and elastic pants.

Wow (insert name here)'s ass expansion project is ahead of schedule....Ewww!

note: In mixed company sometimes it is appropriate to use the term "expansion project"

Ass Expansion Project by chosney September 25, 2003

Explosive Ass Syndrome 

Excess expulsions from the anus, whether it be too much gastric explosions (gas), or excessive diarrhea...which can be caused by the consumption of chineese take out (a.k.a. cat/msg), or spicy food (i.e. thai).

I was sitting on the toilet, and boy did I ever have explosive ass syndrome! I was wish my ass was inactive like a dormant geyser.

Explosive Ass Syndrome by Rottin' Ronny July 29, 2006