The smell that arises from a crowd at an outdoor concert. It's a combination of sweat, heat, rain, mud, alcohol, drugs, nasty hookers, and live music.
Oh man, I smelled like moshcrotch after i left the Warped tour.
To use one's body parts to get free stuff.
Man, that girl totally crotchjewed the cashier when she flashed him and got Biggie Fries for free.