external-combustion engine

A fluid-fuel-powered motor that is so poorly designed/maintained that its exterior actually catches fire.
One should periodically check "under the hood" for oil-leaks to reduce the chance of said power-plant's becoming an external-combustion engine.
by QuacksO October 03, 2019
Get the external-combustion engine mug.

Spontaneous anal combustion

it Is a gay fighting move used during sex
Gary: “yo did you just use spontaneous anal combustion on that kid yesterday”
Peng: “ yes, is there something wrong with that?”
Liam and mai: “yes that’s fucking gay”
by Kim Hong Kong September 08, 2019
Get the Spontaneous anal combustion mug.

Spontaneous Combustion

A totally real medical condition. This condition is found primarily in small children and the elderly.

When one spontaneously combusts, their overall body heat has to exceed 2341 degrees Fahrenheit.

Generally, it is very noticeable when someone combusts. Their hair is immediately singed off, leaving them with a brand new shiny bald head (good riddance, that umbrella cut was UGLY!), and they essentially, burst open. Their organs and guts splat all across the ground, but most of the time their insides were already turned to ash, so you don't have to see their disgusting insides.

It has also been totally medically proven that when one has a large ego, specifically 13-14 year old boys, they are more prone to combustion. In fact, their spontaneous combustion rate is 95% more than small children and the elderly.

Signs of combustion- Dizziness, nausea, inflated ego (for some), excessive masturbation, consumption of oil or white-out, and trying to become a spice king on TikTik, because we know that ain't gonna end well.

And remember--when you see a child about to combust, take it across the room until it is behind some sort of barrier. When an elderly person is about to combust, just run. And finally, when you see a teenage male about to combust, scream and run because you know that this is gonna be intense.
"Hey, bro! Did you see Landen Spontaneously Combust in the gym! It was crazy!"

"Yeah, isn't Spontaneous Combustion a real medical condition?"

"Yeah. I don't miss him, though."
by Xeni_isbetter November 30, 2023
Get the Spontaneous Combustion mug.

Spontaneous Combustion

When a male, typically going through adolescence, accidentally busts a nut for no reason.
Adam: Did you see what happened to Rick? We were in math and he accidentally cummed in his pants for no reason.
Dan: Shit bro, spontaneous combustion isn't it
by QueenOfRain April 16, 2019
Get the Spontaneous Combustion mug.

combust

a verb to describe that you get all bothered due to sexual tension in someone's proximity or their actions
"He looked at me right in the eye and I thought I would combust."
by blackberry_n_bay October 02, 2022
Get the combust mug.
Whenever something randomly explodes because of a teamswitcher, buster the combuster, suicide ɓomɓer or a buster
by DOC. Chocc June 03, 2024
Get the Spontaneously internally combusted mug.