Yikehaw Share definition Flag A combination of the words Yikes and Yeehaw, often used when you must retain your cowboy roots, but need to show discomfort. John: Arthur! Arthur, my horse just gone up and died! Arthur: Yikehaw. Yikehaw by arthur morgan's asshair April 11, 2019 0 0 Get merch Get the Yikehaw mug. Buy Now — $32.95 See more merch