The embarrassing(and sometimes painful) act of your balls hitting against your thigh or leg while walking or running
by Brett50Cal July 13, 2012
Get the The Flop-Flopmug. "Kevin did da flop-flop at da playground... It was so small, it aint even look like it was movin!!!"
by Destinee May 13, 2005
Get the flop-flopmug. Sit: havr you sern my sister
Jason: yes shes very nice
Getrenv: yes shes smoking hot, i want to flop flop nigga her.
Jason: yes shes very nice
Getrenv: yes shes smoking hot, i want to flop flop nigga her.
by SitInYourRoom July 5, 2020
Get the Flop flop niggamug. by Jonnnnnnnnnn April 18, 2009
Get the flip flop the flip flopsmug. by Littlest pet shop PUffiN October 2, 2020
Get the Flop~ flop~mug.