or what·cha·ma·call·it, what-you-may-call-it, what-do-you-call-it
- an object or person whose name one does not know or cannot recall.
Origin of whachamacallit
Related Words for whatchamacallitunnamed, unheard-of, unidentified, undisclosed, nameless, unsigned, body, substance, phenomenon, commodity, matter, gadget, item, something, article, engine, apparatus, means, utensil, weapon
Examples from the Web for whatchamacallit
Historical Examples of whatchamacallit
"Whatchamacallit tastes good like a dum-dum cigarette should," Victor put in, in an attempt to settle the subject.You Don't Make Wine Like the Greeks Did
David E. Fisher
1928, compressed form of phrase "what you may call it." Earliest recorded variant is what-calle-ye-hym, attested from late 15c.