floppy fuck

Having sex with a flaccid penis; also as a noun, an aquaintance who's fetish is going in soft.

"Alex is such a floppy fuck!"

by Jacked unicorn April 20, 2017

flappy fuck

When doing cosplay during sex and the significant other is dressed up like a sweet little flappy bird.

Flappy fuck is 1000x more addictive than flappy bird.

by Bad C dev March 4, 2021

Flappy gum ass mother fucker

When someone talks so much everything that they talk is shit and they fuck their mother

“Hey bob” “yea” “shut your flappy gum ass mother fucker up”

by Ferelliekos September 23, 2020