Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc. gut noun 1.paunch(Informal)belly,spare tyre(Brit. slang),potbellyHis gut sagged over his belt. plural noun 1.intestines,insides(informal),stomach,belly,bowels,inwards,innards(informal),entrailsThe ...