shimonaway Share definition Flag 1- The gibberish a drunken man yells when he does not understand what he is saying in a Las Vegas casino on New Years Eve. My drunk friend yelled, "SHIMONAWAY!!" as he ran around. shimonaway by Sethdawg March 5, 2008 0 0 Get merch Get the shimonaway mug. Buy Now — $32.95 See more merch