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
Get the penis shakemug. by kissmyapple December 3, 2007
Get the penis shakemug. "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 29, 2009
Get the shake penismug.