When you're running or doing other exercise, with loose fitted, or no clothes around your nether regions, so that your manhood flops.
"Man, I was in the gym yesterday, and I only had a pair of boxers under my sweatpants! Everybody was staring at my massive cockflop!"
by Gram22 December 8, 2021
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Those two slamhogs making out in public is a real Cockflopper.
Those two slamhogs making out in public is a real Cockflopper.
by Jay Ownz September 28, 2010
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by camp hill scum October 30, 2007
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