white sock mule horse Share definition Flag A white sock mule horse is when you cant drive a vehicle worth a f*ck and you wreck on the way Chaz was on his way to work and somehow managed to hit a white sock mule horse white sock mule horse by Freddy mulecock April 16, 2020 0 0 Get merch Get the white sock mule horse mug. Buy Now — $32.95 See more merch