noun
\'fir 'bo-nər\
An erection caused by a sexy, usually menopausal,
MILF/GILF that gives the recipient varied feelings of confusion, intoxication, intrigue, elation, disgust, excitement, sadness, delight, and fear.
//getting a fear boner from your Step-
Dad'
s drunk aunt when her tiddie flops out at the family BBQ
When an 18 - 25-year-old male inexplicably becomes sexually aroused because a funny, hot 45-year-old or older MILG/GILF looks at him; generally leaving him with an uncontrollable urge to
masturbate while ugly-crying.
//rushing off to beat-out a fear boner your buddy's
mom gave you when she smiled at you
Why is Ronnie spending so much time in the bathroom, Dude?
My Step-
Mom gives him raging
fear boners.
I get savage fear boners when Stiflers
Mom smiles like that!