When a naked man gyrates his body in such a manner his penis rotates to mimic the rotation of helicopter blades.
The girls were impressed at the speed of Steve's flopter copter.

His flopter copter was so big and fast it blew the whiskers on his chin.
by Squaville May 26, 2016
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Flopter -- When you flopped her really hard and she landed on a bag of eminems.

And den...... She tripped, fell, landed on his dick?)
Woahhhhh dudeeeee. She just took a flopter and he busted near instantly.
by DEREKDAGOD April 18, 2018
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