Shamu Share definition Flag When a guy cums on a girl and she surprises him by smacking the cum and splashing it on the guy, like he's in the front row at Sea World. Bro, last night my girl totally Shamu'd me! It even got in my eye! Shamu by Charles Mili June 4, 2017 0 0 Get merch Get the Shamu mug. Buy Now — $32.95 See more merch