The Collaborative International Dictionary of English v.0.48:

Paunchy \Paunch"y\ (p[add]nch"[y^]), a.
   Pot-bellied. [R.] --Dickens.
   [1913 Webster]

WordNet (r) 3.0 (2006):

paunchy
    adj 1: having a large belly [syn: abdominous, paunchy,
           potbellied]

Moby Thesaurus II by Grady Ward, 1.0:

49 Moby Thesaurus words for "paunchy":
   adipose, beefy, big-bellied, bloated, blowzy, bosomy, brawny,
   burly, buxom, chubby, chunky, corpulent, distended, dumpy, fat,
   fattish, fleshy, full, gross, heavyset, hefty, hippy, imposing,
   lusty, meaty, obese, overweight, plump, podgy, portly, potbellied,
   pudgy, puffy, pursy, roly-poly, rotund, square, squat, squatty,
   stalwart, stocky, stout, strapping, swollen, thick-bodied,
   thickset, top-heavy, tubby, well-fed