abdomen abomasum bay window bed bedrock beerbelly belly bottom bottom side breadbasket breech buttocks craw crop diaphragm downside embonpoint first stomach fundament gizzard gullet gut hardpan honeycomb stomach kishkes lower side lowest layer lowest level manyplies maw midriff nether side nethermost level omasum paunch pot potbelly potgut psalterium pusgut rennet bag reticulum rock bottom rumen second stomach spare tire stomach substratum swagbelly third stomach tum-tum tummy underlayer underneath underside ventripotence