Entry 2 senses Webster, 1913 Dumpy /dŭm'-pē/ · Dump·y · IPA /ˈdʌmpi/ 01 a. Short and thick; of low stature and disproportionately stout. 1. Short and thick; of low stature and disproportionately stout. 2. Sullen or discontented. See 2nd dump{1}.[Prov. Eng.] See: dump{1}