Derived from the word jock strap. Much in the way a jock strap cups, secures, and holds in place someone's nuts (balls or testicles), some humans also hold, grip, or "jock" someone in order to impress, gain favor, or attract.
Jocking is the act or art of placing someone on a higher level or pedestal, most times undeservedly and annoyingly so.
"I wish John would stop jocking Terri for a date!"
"Do you see the way Sally has been jocking Mr. Brown for a good grade?"