WordWeb Online

1. Resembling a garbage dump
    
2. Short and thick; as e.g. having short legs and heavy musculature
   "a dumpy little dumpling of a woman"
   - chunky, low-set, squat, squatty, stumpy
    
3. Short and plump
   - podgy [Brit], pudgy, tubby, roly-poly

Derived forms: dumpiest, dumpier

See also: dump, dumpiness, fat, little, short