Spontaneous Sexbustion

The act of randomly bursting into flames while having sex.

I was giving this guy a blowjob, and he went into spontaneous sexbustion. He almost caught my mouth on fire.

by WhatIsThis?!Studios July 7, 2011

Spontaneous Affection!

The art of surprising your loved one by randomly telling them that you love them.. need them... miss them. Often said in the middle of conversations that are totally unrelated.

Lover 1 - So I went to the beach today...
Lover 2 - Oh god I Love you!
Lover 1 - Aw wow!! What was that for?
Lover 2 - Just.... Spontaneous Affection! ... I really missed you today..

by Sweet Nat February 25, 2006

spontaneous cumbustion

Cumming without being aroused and with no sexual provocation.

As the airplane took off, Bob spontaneously cumbusted.

by tanukisanyo May 9, 2005

spontaneous masturbation

Jacking off at random times in random places. If someone is a spontaneous masturbater, you never know when they will just whip their dick out and start beating it.

Zach pulled his dick out in the middle of the cafeteria and started pumping it. This is an example of spontaneous masturbation.

by Vengefulsorrow December 28, 2008

Spontaneous Comblumpkin

The act of either :

A) Catching on fire whilst receiving blumpkin

B) Receiving blumpkin whist already on fire

or C) Someone who randomly but quickly (spontaneously) decides to give another blumpkin.

A) "Ohh this blumpkin is so good Karen!"
"WTFFF!! You just spontaneously comblumpkinned!"

B) "Oh shit my johnson's on fire!"
"Here, a little spontaneous comblumpkin will put that right out!"

C) "Dude, my girlfriend surprised the hell out of me yesterday for my birthday."

"Oh really? What'd she do?"

"She spontaneously comblumpkinned me!"

by Lucizzle December 16, 2009

spontaneous generation

The mistaken idea that living things can arise from non living sources

Redi created a controlled experiment to disprove spontaneous generation.

by ?_?_?_?_ November 23, 2015

Spontaneous Staredown

The moment when you accidentaly have a silent staring contest with another person, usually resulting with someone blinking and the other laughing if friend, or if stranger going back to what they were doing.

It was quite awkward when I had a Spontaneous Staredown with that man.

by Birduarent May 8, 2014