The undelightful mishap which happens during creamation where your Penicular organ combusts, or explodifies.
I was about to have the greatest sex, until i had a penal combustion
by Mikey-o April 27, 2003
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A retarded fan of the crappy website Combusting Herpes, but to a more extreme length, in which they try to convince people who hate the site to spend more than 5 seconds on it and claim that the site is funny and provides social commentary followed by calling that person out on their supposed stupidity even though they are the ones making complete assess out of themselves.

They often claim that the person they're insulting is butthurt when they're actually more butthurt then the person they are insulting.

Sometimes they are similar to Twitards in the way that they act.
"Combusting Herpes is teh shit."
"No it isn't."
"Waaaaaaaa, Nathan doesn't like Combusting Herpes! Waaaaaaa!"
"Yeeesh - what a Combusting Fantard."
by MM132 January 6, 2013
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Getting really mad all of a sudden and doing something regrettable. AKA flying off the handle.
Sometimes I feel this urge for spontaneous combustion, but then I try to think to myself, "how will this fix the situation" and "what if I hurt someone, or do something very regrettable." I try to do something else instead, like take a walk or maybe play some basketball or play Halo.
by Adel7 December 4, 2007
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My pre-teen daughter explained spontaneous combustion as:

a random and sudden outburst of laughter
Suffering from spontanious combustion usually stems from nervousness or excitement.

This girl in dentention was given almost 2 months because she went into a spontanious combustion situation.

by G's Spot December 4, 2005
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mary: "who's up for some herb combustion?"

jane: "i am!"
by bobby bobbington May 14, 2015
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A sexual encounter involving 3 males. One fully naked man is standing with his scrotum dangling and his legs spread wide. The two others are wearing full Mongolian native tribal gear standing 10 yards away from the man. One is facing his front, and the other is facing his behind. They begin chanting, and when the chanting reaches a climax, they both charge head first and torpedo dive into male 1's nutsack causing a full explosion, Then males 2 and 3 use the blood and mutilated testicles to masturbate.
I cant believe i just gave my grandfather a Mongolian Nut Combuster!
by Dogfood11 April 5, 2017
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to suddenly, and with no apparent reason, burst into flames and within minutes become a human cinder. a.k.a. SHC
defoe was running so fast towards the opponents penalty area that he suddenly suffered an acute spontaneous human combustion
by theWestHamfan November 4, 2003
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