/ Dictionary / Index T tubby: Meaning and Definition of Find definitions for: tub•by Pronunciation: (tub'ē), [key] — -bi•er, -bi•est. short and fat: a tubby child. having a dull, thumping sound; lacking resonance. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tubby (Thesaurus) tubate tub chair Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language