tuna sandwich Share definition Flag a sick ass sexual manuever where your woman makes you eat her coochie even though she's bleeding I had to down a fifth of SoCo after my woman made me eat her tuna sandwich. I still couldn't get the taste of blood out of my mouth! tuna sandwich by Da Nasty One June 17, 2003 0 0 Get merch Get the tuna sandwich mug. Buy Now — $32.95 See more merch