Crotchwatch

1. Crotchwatcher
n.
Someone who cannot take their eyes off their own or another's no no square.
2. Crotchwatching
n. The process of watching one's own or another's crotch, usually for viewing Urban Dictionary definitions in class.

1. Bro, did you see that crotchwatcher? What a creep!
2. Dang, the teacher caught me crotchwatching.