on the jock Share definition Flag slang term for a woman who likes to fuck guys. typically between cheerleader and football player types. Yo, your gurl Reyanne is at the party tonight. She'll end up on the jock! on the jock by librarybooklover September 8, 2011 0 0 Get merch Get the on the jock mug. Buy Now — $32.95 See more merch