frontierre
The crotch, after dropping trou. Usually refers to male full frontal nudity.
"Last year a movie came out: Forgetting Sarah Marshall, with Jason Segel - who I'm actually friends with. He shows his frontierre on that, but as soon as I saw it, it was like when the first guy dunked in basketball - all the other guys are like, 'Now I'm going to have to dunk to stay in the game'. As soon as I saw his penis, I was like, 'Now I've got to show mine to stay in the comedy game."- Seth Rogen