slang for the sexual act of two or more females bumping their vaginas together in a violent, scissoring fashion
Guy: "Danielle, how was your clam crunching upstairs?"
Danielle: "Probably the roughest two hours of my life ... There were like eight other girls there."
Danielle: "Probably the roughest two hours of my life ... There were like eight other girls there."
by Nody Cowlin April 19, 2011