ninja vanish Share definition Flag When a girl is about to cum pulling out and throwing sand in her pussy and screaming "Ninja Vanish." Then running out of the room. I got laid last night, but i didnt like her so i pulled a ninja vanish. ninja vanish by Darkrage December 27, 2007 0 0 Get merch Get the ninja vanish mug. Buy Now — $32.95 See more merch