octopus clap
When two women grind their vaginas together so fast it feels like a wet slap and sounds like a duck in a blender.
They did the octopus clap in the hallway and the janitor heard it from the other end of the school.
My mom and her friend did it at the grocery store and the cashier almost fainted.
At the gym, my sister and her friend did it and the treadmill next to them started shaking.