Top definition
The act of instant male orgasm upon seeing something insanely hott.
When Lauren and Silvia took their clothes off, Patrick experienced spontaneous cumbustion.
by Sivv Vicious March 23, 2008
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Dirty Sanchez Plush

It does not matter how you do it. It's a Fecal Mustache.

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2
The act of two males performing a donkey punch and white dragon in unison on a female during an mmf.
"We gave Dorothy a spontaneous cumbustion last night. Her head exploded and a geyser of blood and cum splattered the walls."
by Gide October 02, 2006
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Cleveland Steamer Plush

The vengeful act of crapping on a lover's chest while they sleep.

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3
Jill was pissed Randy was premature last night. Jill said he suffers from Spontaneous Cumbustion.
by PSpin420 November 01, 2009
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Golden Shower Plush

He's warmer than you think.

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4
Cumming without being aroused and with no sexual provocation.
As the airplane took off, Bob spontaneously cumbusted.
by tanukisanyo May 09, 2005
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Cleveland Steamer Plush

The vengeful act of crapping on a lover's chest while they sleep.

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5
The process by which, through the ingestion of an unruly quantity of phosphorous, one's ejaculate spontaneously erupts into flames upon expulsion from the penis causing widespread fear and panic.
Dave and Marie were dating until Dave's spontaneous cumbustion all over Marie resulting in a sudden case of the funerals.
by Diction.net February 24, 2015
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Cleveland Steamer Plush

The vengeful act of crapping on a lover's chest while they sleep.

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