when two guys are naked and stand too close to each other or run into each other and their penises touch it is known as a penis shake. sometimes resulting in a dongknot.
after the big game, the guys hit the showers. tom carelessly walked into ben and gave him a penis shake.
by TallPeniz February 4, 2009
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a sexual favor a girl gives a guy. commonly called a handjob or hj
dayummm, that girl gives a great penis shake!
by kissmyapple November 10, 2007
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To hang out and flirt with a group of girls. See if any of them like what you've got to offer.
"All the booze is gone.. you wanna go try and find another party? or we could just stay here and shake penis."
by gusthegoat2302 October 30, 2009
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