whatsit

[ hwuhts-it, hwots-, wuhts-, wots- ]
/ ˈʰwʌts ɪt, ˈʰwɒts-, ˈwʌts-, ˈwɒts- /

noun Informal.

Origin of whatsit

reduction of what is it
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for whatsit

whatsit

whatsitsname, masculine whatshisname or feminine whatshername

/ (ˈwɒtsɪt) /

noun

informal a person or thing the name of which is unknown, temporarily forgotten, or deliberately overlooked
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012