fearfuck
The act of having sexual intercourse with someone because you are afraid of them.
Shia LaBeouf yelled at his groupie in a violent manner, and told her to get on her knees. He then began to fearfuck her senselessly.
fearfucker
Someone who actively seeks out ways to cheat death. A daredevil.
Man, check that fearfucker, jumping off cliffs and shit.