Watermasnerd Share definition Flag when you get out of a body of water and your nose is oozing a giant wet snot stream down your face How embarrassed he was when he realized after talking to the hotties on the beach he had a giant watermasnerd stuck to his cheek. Watermasnerd by KC1 May 31, 2005 0 0 Get merch Get the Watermasnerd mug. Buy Now — $32.95 See more merch