Definitions by flappyarm.sponsor

flappy arm 

An autistic person who is so retarded they flap their arms when being overstimulated.

"Why is that retard doing that weird shit with his arms?"
"It's cuz he's retarded as fuck so he's a flappy arm."
"Hey! fucking flappy arm what the fuck are you doing?!"
"I told you to stop cawing fwappy aum bwo!"

flappy arm by flappyarm.sponsor April 25, 2023