verb: a social event in which several girls gather to repeatedly clench and release their vaginas in unison to reach orgasm.
considered by some to be a spiritual experience. Considered by others to be good 'ol fashioned fun.
"Hey Gina, wanna go to a corn hop over at the Johnson's tonight?"
"Oh boy! The Johnson's? Bobby-joe's brother Harry Johnson is soo dreamy, Id better go practice!"