yamacoochie Share definition Flag yamacoochie is a gay boi in love with a salty french-fry, who happens to be his best friend, tsukishima kei :) person A: “i’m in love with my best friend :/“ person B: “ur such a yamacoochie” yamacoochie by zi kozume noya November 5, 2020 Get the yamacoochie mug.