/ Dictionary / Index B boffo: Meaning and Definition of Find definitions for: bof•fo Pronunciation: (bof'ō), [key] — n., pl. adj. -fos, —n. boff. —adj. highly effective or successful: He gave a boffo performance as Cyrano. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: boffo (Thesaurus) boffin Bofors gun Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language