Green’s Dictionary of Slang

1. to have sexual intercourse.

c.1698		B.E. Dict. Canting Crew.
1785, 1788, 1796		Grose Classical Dict. of the Vulgar Tongue.
1811		Lex. Balatronicum.
1823		Egan Grose’s Classical Dict. of the Vulgar Tongue.
1889–90		Barrère & Leland Dict. of Sl., Jargon and Cant.
1969		R. Jessup Sailor 108: If you try to jock him again, I’ll do a job on you myself.
1972		R.A. Wilson Playboy’s Book of Forbidden Words.
1988		Ice-T ‘Radio Suckers’ 🎵 You’ll jock anything with the Gucci tag.
1997–2000		College Sl. Research Project (Cal. State Poly. Uni., Pomona) 🌐 Jock (verb) To pick up or hit on someone.
2001		UGK ‘Look at Me’ 🎵 Bitches jockin niggas hatin drunk off gin.
2012		Chief Keef ‘Love Sosa’ 🎵 Don't care no price I'll cop it b / And yo bitch steady jockin' me.

2. (US) to engage in athletics.

1968		Seattle Apr. 27: Paul was a pretty good student and a good athlete [...] but he just didn’t have time to jock it up [HDAS].
1975		G. Lichtenstein Behind the Scenes in Women’s Pro Tennis 31: Could the Old Lady hang tough? Could any woman jock?

3. to be lively and have a good time.

1978

R. De Christoforo Grease 36: Hey, all you teenagers, if you’re having fun [...] keep your bean clean, and your feet neat, ’cause when I’m jockin’ there ain’t no stoppin’.

4. (US black) to imitate, to irritate (cf. on someone’s jock(strap) under jock n.¹ ).

1992		UGK ‘Cramping My Style’ 🎵 Remember back in PA? / When you were constantly jockin and callin me everyday.
1997–2000		Da Bomb 🌐 16: Jockin’: 1. Harassing behavior.
2000		Ebonics Primer at www.dolemite.com 🌐 jock Definition: [...] 2. to cheat or deceive. Example: I got horny bitches on my jock, 24-7.
2007		UGK ‘Swisha And Dosha’ 🎵 Got boppers that’s steady jockin, goofy niggaz in my ear.

5. (US black teen) to idolize, to pay someone lots of attention, trying to impress them.

1986		Beastie Boys ‘Girls’ 🎵 I seen her just the other day / Jockin’ Mike D. to my dismay.
1990		Eble Campus Sl. Nov.
1992		Source July 37: They were walkin’ through the crowd and [...] girls were jockin’ them.
1997–2000		Da Bomb 🌐 16: Jockin’: [...] 2. To like someone immensely.
2001		Source Aug. 186: The Philly native who had fans jocking him on the Hard Knock Life tour.