by porktunnel69420 September 22, 2022
Get the flappymug. This is a term that your siblings use to bully you. It describes someone who is fat and flabby whose man boobs flap together when they run... hence the term flappy. It has the potential to cause resentment and damage your childhood. But it’s okay because one day, when you and your siblings grow up, you will be better looking, more successful, and happier than them!
by Nova4500 February 28, 2019
Get the Flappymug. When a guy is asleep, a girl slaps his face. That causes him to get a boner, so the girl jumps onto his dick. The guy screams, she shits in his mouth and he puts it on his dick. Then puts it back in her ass.
by Flappybirdmaker January 27, 2019
Get the Flappy birdmug. 
Get the Flappy dick symptommug. This guy already came and he was still trying to have sex. His flappy balls were flapping against me it was such a turn off.
by Trainwreck July 30, 2015
Get the Flappy Ballsmug. Flappy foot is normally a boy named Matt and he is incredibly clueless to when he puts his leg in the air and his fat jiggles on his leg! U definitely want to be this kids friend if u have a chance.
by Happysquid February 20, 2018
Get the Flappy footmug. by lazyelvis June 9, 2016
Get the flappy birdmug.