Raportunist 

A sober person who takes advantage of drunk people to get laid.

Hey Phileasha I think Brian is a raportunist, he totally went into that room with the drunk girl.

Raportunist by Suzannimals August 21, 2016

Rapertunity 

When the act of raping presents itself in an opportunistic way.

Man, I was jogging a back woods trail the other day and this hot chick came along and I was like, dang, what a rapertunity.

Rapertunity by Tbagger#1 September 13, 2011