The act of repeated naked pelvic thrusts to generate the unmistakable noise "fladapada-dapada-dapada" as the male genitalia impacts on the thighs or bumcheeks (in particularly gifted individuals)
"I'm glad I was wearing my Ray-Bans when that dude started doing the fladapada on stage.... is that a stye or some smegma in your eye?"
by Fladapadactyl October 15, 2012