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Made up body part found in some Pharmacology books. Often associated with "Tennis Elbow".
"Usu" has not been found in any other text book as a real connective tissue.
"Tennis Elbow affects the lateral epicondyle of the humerus and the usu."
"I have never heard of an usu muscle or bone."
by D4dd November 15, 2017
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Oct 30 Word of the Day
A trick played on a fellow athlete where the open hand smacks the target's testicles with the knuckles in a sharp, wrist flicking motion.
"Dude, I sack tapped Brandon, and now he has the whole team trying to sack tap me"
by Chris M July 07, 2004
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Origin: Some dumbass abbreviation the screwed me over in English class.
(I later realized Usu. means usually. Like WTF man?)


Definition: Now has been revised as slang, type of swear, considerably Chinese of Jap, whatever the fuck you feel but! Use it how you like.
Guy: Im'ma go usu shit on your ass!
Dude: fuck a ninja!
Guy: Run bitch run!
by Fensty January 17, 2009
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