Dirty Clam Sandwich Share definition Flag When one guy is eating a girl out while another guy is in behind licking her bum hole Cory and I gave his girlfriend a dirty clam sandwich last night. It was fucking awesome!!!! Dirty Clam Sandwich by m_steph55 July 27, 2010 0 0 Get merch Get the Dirty Clam Sandwich mug. Buy Now — $32.95 See more merch