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Meaning of whatchamacallit

what•cha•ma•call•it

Pronunciation: (hwuch'u-mu-kôl"it, hwoch'-, wuch'-, woch'-), [key]
— n.
  1. whachamacallit.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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