1. slang A men's hairstyle popular in the 1950s in which the heavily-greased hair is combed back in the manner of a duck's tail feathers. "Duck's butt" can also be used. Why are you wearing your hair in a duck butt like that? It's not 1955!
2. rude slang Someone who is short in stature. Oh yeah, a duck-butt like Janine will have a hard time seeing over all of these people in the crowd.
1. n. a very large pair of buttocks. (Use with caution.) What an enormous duck-butt!
2. and dusty butt n. a short person, especially someone with large buttocks. (Rude and derogatory.) The duck-butt who just came in reminds me of somebody I once knew.