THESAURUS
spare tire
abdomen, abomasum, bay window, beerbelly, belly, breadbasket, craw, crop, diaphragm, embonpoint, first stomach, gizzard, gullet, gut, honeycomb stomach, kishkes, manyplies, maw, midriff, omasum, paunch, pot, potbelly, potgut, psalterium, pusgut, rennet bag, reticulum, rumen, second stomach, stomach, swagbelly, third stomach, tum-tum, tummy, underbelly, ventripotence