Is a phrase that has become popular after somebody posted on MLIA (mylifeisaverage.com) about translating the phrase "Liar, Liar, Pants on Fire!" to French and back again, and coming up with "Teller of untruths, your trousers have combusted"
by Somebody_Else October 26, 2009

One of the coolest things to say when you and your friends are bored to hell and they don't expect it.
Dude 1: Man! flaming anus spontaniously combusting and bursting into flames as he jumped off the cliff!
Dude 2: Cool!
Dude 3: Awesome!
Dude 2: Cool!
Dude 3: Awesome!
by Yargengee October 18, 2006

by -xoxo Deeeena love December 13, 2009

OMFG, that was alot of cake, omggg im going to combustionally combust on cake!!!! "death by caketual combustion"
by Sara Kessler August 16, 2009

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 3, 2019

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”
Peng: “ yes, is there something wrong with that?”
Liam and mai: “yes that’s fucking gay”
by Kim Hong Kong September 7, 2019

Whenever something randomly explodes because of a teamswitcher, buster the combuster, suicide ɓomɓer or a buster
by DOC. Chocc June 3, 2024
