yeetus defetus Share definition Flag when you kick a man in their testicular area, you can make sure they don't have any children. I got mad at a boy teasing me so I said yeetus defetus and now he probably won't be having kids in a while. yeetus defetus by yeastus September 25, 2020 0 0 Get merch Get the yeetus defetus mug. Buy Now — $32.95 See more merch