1) Chubby 2) Fat 3) Fatso 4) Obese 5) Podgy 6) Pudgy 1) Corpulent 2) Dumpy 3) Lacking resonance 4) Podgy 5) Pudgy 6) Rather overweight 7) Roly-poly 8) Round-bellied 9) Short and plump 10) Stoutish 11) Tuba in a children story 
• (a.) Resembling a tub; specifically sounding dull and without resonance, like a tub; wanting elasticity or freedom of sound; as, a tubby violin.
Tubby is a slang nickname given to a fat person, often of short stature.
short and fat: a tubby child. · having a dull, thumping sound; lacking resonance.