Male athletic aficionado who masturbates.

The act of masturbation by a male athletic aficionado.

Any male who masturbates while observing other males in the locker room.
Paul sure is a jock off. Yeah, I know. He jocked off again in the locker room this afternoon.
by Jersey Avery April 20, 2008
Get a jock off mug for your daughter-in-law Rihanna.