Definitions by iamnotnjs

Tumbeast 

A large, yellow watermelon with the texture of a cactus and a stem shaped like a unicorn. Found primarily in Narnia and come to life on the third Saturday in June at exactly 1:43 A.M., EST.

"Oy! You there! There's a Tumbeast on my wanker!"

Well, get it off, Charlie, it's probably attracted to your Stunkmigeon!

Tumbeast by iamnotnjs March 8, 2011