Combustion 

Combustion is a better, more accurate term for lit. Or alternatively that which is lit, cool or awesome.

“Your outfit is combustion”

Combustion by Annajaye November 12, 2022

Combustion 

The act of a material or substance breaking or falling apart.

When we pressed the launch button, our rocket just suddenly combusted. Six months for just one big combustion.

Combustion by XxJake474xX May 18, 2008

combustion 

When something goes off with a bang or an event was heavy

Yo, dat dance was combustion

combustion by guardian October 24, 2003

Combustion Engine Sex 

Combustion Engine Sex is when you have anal sex with someone who has a poopy butt

So basically you ram your combustion cylinder into their valves and poop splatters all over your dick and on the floor and walls

Dave: hello mike dont wipe i wanna have some mad combustion engine sex
Mike: hell yeah lets get it
*mike goes to bed with poopy butt*
Dave: OHHH IM BOUTTA COMBUST
*coems*
*poop explodes everywhere*

Combustion Engine Sex by RealWhiteHoodGangster134 May 11, 2025

Shitaneous Combustion 

Unexpected and severe gassy diarrhea.

After eating lunch at the taco truck down the street, I had shitaneous combustion when I got back to work.

Shitaneous Combustion by Htos_Drol November 27, 2012

Preventing Spontaneous Human Combustion

To let one rip
First coined on the hit show:south park

ex:

Man:Dude that was sick it smells like eggs...
Dude:Hey man just preventing spontaneous human combustion here...

Preventing Spontaneous Human Combustion by Fucktarded Scarecrow August 1, 2009

Anal Combustion

Any form of explosion just inside the anus. Could be the result of inserting and igniting gasoline or gunpowder, attempting to light a fart, or that Mexican food from yesterday. Depending on the strength of the sphincter, severe anal combustion may result in blowing out the anal socket or rupturing of the rectum.

I had pretty bad anal combustion after that spicy 15 bean soup--it almost blew out my sphincter!

Anal Combustion by b007y514y3r March 11, 2016