1 definition by WhatAWatermelon.
Slang for a big ass baby. Nicknamed this because while giving birth it feels like it'd be easier to push Mr. Universe out of your vagina.
Proud mother: "Cody was born a whopping 12 pounds and 24 inches."
Shocked eavesdropper: "What a watermelon!"
Shocked eavesdropper: "What a watermelon!"
by WhatAWatermelon. December 31, 2010