flopping about 

Vigorously helicoptering your penis around, while recording it all and then sending the video to all your friends.

Adam was home alone, so he began flopping about.

flopping about by Gypsy Sister January 25, 2014

Flopping-Mandem 

A collection or organised beings who stipulate a flop or flopulation. This Mandem concordly flop and reach a settlement of further flopulations at other attempts.

A: Hey mandem shall we go to the theme park?
B: Dun kno
C: I dont know either D: cbb E:maybe
F:This is a FLOP we are the flopping-mandem

Flopping-Mandem by Rachenzskie October 19, 2009

Flopping a straight 

Term used to describe a situation where a man fails to sustain a pre-existing erection. Often applied to instances where sex was imminent but did not occur as a result of the flopped straight.

Mike was so horny after making out with his girlfriend for three hours, but when she took her panties off and he finally realized he was about to lose his virginity, he got so nervous that he wound up flopping a straight, much to her dismay.

Flopping a straight by Chonky December 9, 2008

Flopping Off 

Auto erotic genital manipulation performed without the aid of one's hands. The flaccid penis is thrust about with aggressive hip movements and shuffling for between one and two hours or until erection occurs. The flopping off continues for another three to twelve hours when climax is finally achieved. Women with large clitori or labia minora may also engage in flopping off.

Guy 1: Man, I was flopping off like crazy yesterday. Took me like 13 hours but it was sweet, yo!
Guy 2: An all day floppoffathon? Gross!

Flopping Off by Fatty Blumpkin March 17, 2015

Flopping Fish 

Like the motor boat when one places their face in someones cleavage, only this is done with your hand.

With fingers pointed to the middle of her cleavage, I wedge my tips in between her tits and gave her a flopping fish.

Flopping Fish by Boots of Chinese Plastic 7 December 17, 2011

Flopping Weasel 

When one take his own balls in his own hand, lifts them in the air, finds a near by target to then drop or "flop" his own balls on a body part of the target.

Yo dude check this shit out, bout to give my dog a flopping weasel on her face. flopping balls silly weasel

Flopping Weasel by Garbry Boys July 25, 2012

Flopping Fish Slap 

After a girl giving a man fellatio, the man takes out his penis, wiggles it in her face, and slaps her in the face with his erection. Then putting a fishing hook in her mouth, thus making her the flopping fish.

Patrick-Isn't that illegal?
Josh-Nahhh, almost a sport nowadays.

Dylan- The Flopping Fish Slap's fresh to death, Yadadamean

Flopping Fish Slap by IsThatPoop? August 16, 2009