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