Julius Erving, a Hall of Fame basketball player. Dr. J played college basketball at UMass and then went to the American Basketball Association where he played for the Virginia Squires and New York Nets. When the ABA and NBA merged, onerous financial conditions placed on the Nets forced them to sell the rights to Dr. J to the Philadelphia 76ers, with whom he had a fantastic career until his retirement in 1987.

Among other feats, in the 1976 ABA All Star Game during the first slam dunk contest Dr. J dunked the ball after leaping from the free throw line.
Dr. J was one of the great players from the American Basketball Association who also dominated in the NBA.
by PMax March 09, 2008
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Another term for anal sex, inspired by Julius Erving's signature basketball move.
When driving towards the goal, Dr. J would often jump parallel with the baseline. While in the air, he would reach around and jam the ball into the rim from behind the backboard. His method of entry from the rear became his signature move, which resulted in him receiving much attention from women, which resulted in Dr. J (allegedly) entering said women from the rear. They loved it.
Guy 1: I heard Gabe bought an authentic Dr. J jersey on Ebay today. What's up with that?
Guy 2: He had anal sex with a woman last night. He jammed it in from behind like Dr. J. Straight up Dr. J'ed her. The Dr. J jersey is like the scarlet letter, only the opposite.
by CharlieBroccoli May 01, 2011
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My back was killing me and I was horny so I went and got a Dr. J.
by Dr feelgood April 14, 2017
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A god in his own lunchtime. Very swarve and cool.
That Josh Hartnet is a real Dr. J.
by Roxie November 06, 2004
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A phrase used to describe the look of a woman's pubic hair when it's unshaven and resembles an afro.
"I was expecting a George Foreman but when I finally got her pants off, it was more like Dr. J in the ABA."
by Brenda Barger July 27, 2006
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