/ Dictionary / Index W whachamacallit: Meaning and Definition of Find definitions for: wha•cha•ma•call•it Pronunciation: (hwuch'u-mu-kôl"it, hwoch'-, wuch'-, woch'-), [key] — n. Informal. an object or person whose name one does not know or cannot recall. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. WHA whack Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language