Willis McGuillicutty Share definition Flag An alcoholic drink made by mixing 1/2 a glass of Orange Fanta and 1/2 a glass of Captain Morgan. Whoa dude! You got fucked up off that Willis McGuillicutty last night! Willis McGuillicutty by heavy_d_strip June 18, 2010 0 0 Get merch Get the Willis McGuillicutty mug. Buy Now — $32.95 See more merch