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When masturbating so hard your dick turns various shades of light to dark grey, blue and black.
"Dude, My penis got amputated yesterday because I had Moby's Dick."
by FlipSpiceland November 28, 2012
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2
A man named Moby with a penis so large that it takes over his name.
He was Moby until his nudes leaked. Now he's Moby's Dick
by nopronounbullshit November 21, 2018
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