A person who is constantly bothering you or biting your style. Thus, they ride your sack like a jockey rides a race horse.
"Hey Tom, here comes Jim."
"Yeah, I see him."
"Why does he have to dress just like I do?"
"Well, he's a sac jockey."
"Yeah, I see him."
"Why does he have to dress just like I do?"
"Well, he's a sac jockey."
by Hammy Sagar December 3, 2005

by mongoloid August 12, 2004

although Dale Winton has recently married I was always under the impression that he was a knob jockey
by Peter Donohoe June 27, 2003

by richard1000 June 1, 2007

Jerry: Hey, Tim, what happened to your VCR?
Tim: Some damn Cotton-Jockey stole it last night.
Jerry: Figures.
Tim: Some damn Cotton-Jockey stole it last night.
Jerry: Figures.
by Special_Agent_Jack_Bauer12 July 30, 2012

An annoying friend who never leaves your side when you have a bag of drugs and is always trying to get a hit of your drugs anytime you do some. These are the type of friends who bump into you at a party and then completely change their plans to roll with you once they find out you have the good shit. Once the drugs are gone these friends will dismount and look for the next powder pony to ride. Unless of course, they can convince you to buy more first.
Man, quit being such a pocket jockey and get your own shit.
That kid Jason is a freeloading Pocket Jockey , I'm not trying to kick it with him.
That kid Jason is a freeloading Pocket Jockey , I'm not trying to kick it with him.
by Stone Loc the Snowman September 24, 2018

by John Romine August 21, 2008
