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When you are so intensely afraid of another individual that you reach a point of sexual arousal. The fear boner is a sign of submission to a more powerful individual.
I hope Professor Tony Yueng didn't see my fear boner in class today.
by Tod Jenkins September 15, 2010
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Aug 11 Word of the Day
A phrase to describe someone who is cognitively degenerating. Synonym of "going off the deep end". Can have varying degrees of severity.

Reference to the song "Hey You" by Pink Floyd. The line "and the worms ate into his brain" makes no sense in an otherwise linear and literal narration throughout the lyrics.
"My boyfriend has a total case of brain worms. He told me the cat was bugged so the Feds could listen in on us having sex..."

or

"You totally stumbled over that entire sentence. Can't speak English all of a sudden? What, do you have brain worms?"
by _Jez_ October 03, 2009
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2
Sexual arousal brought on by the excitement and/or anticipation of something that would otherwise be terrifying to a normal person.
Watching the trailer for ‘IT 2’ gave me a raging Fear Boner.
by Dean Wilton May 10, 2019
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3
An unexpected boner provoked by a frightening experience or unusually strong or dangerous potential mate.
Sally: I'll break your fucking nose, Tom.
Tom: Fear boner, activate!
by jpb103 May 04, 2016
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4
When you get scared and BAM! Boner.
a black guy trys to jump you but really he wants to ask for directions to kfc but you get so scared(because hes black) that you get fearboner.
by sack dude April 25, 2012
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