Slamming Clams Share definition Flag The act of two females rubbing their vagina's together for mutual stimulation. Look at these lesbians go at it! This takes slamming clams to a whole new level! Slamming Clams by Oppozy November 12, 2009 0 0 Get merch Get the Slamming Clams mug. Buy Now — $32.95 See more merch