When you thrust your hips forward and start shaking your stuff around like your life depends on it.
"Joe's wang was still sore from last night's rave, he had done the Shake Junk all night long, he may be hurting, but it was so totally worth it."
by JoeeoJ123321 May 16, 2016
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Alternate phrase for male stripping. Essentially describes the nude dancing and hip thrusts guys sometimes do for pathetic amounts of money. Often used to confront or belittle guys, jokingly or otherwise, about being strippers.
"You can't accuse me of having a bad job while you just shake your junk for 5 dollars an hour."

Colin: "Does Jake have a job?"
Ben: "Yeah. He's a stripper."
Jake: "What? No I'm not!"
Ben: "Dont lie, Jake. We all know you shake your junk in that place on Preston road."
by Elsis May 16, 2016
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