walnut bottom Share definition Flag The ass of a chubby person, specifically pertaining to the creases and dimples that make the skin resemble a walnut. That girl rode me good, but I won't be calling her back - she has a real walnut bottom. walnut bottom by Nightmare Ives December 28, 2019 0 0 Get merch Get the walnut bottom mug. Buy Now — $32.95 See more merch