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.
by Tod Jenkins September 15, 2010
An unexpected boner provoked by a frightening experience or unusually strong or dangerous potential mate.
by jpb103 May 19, 2016
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