noun
a thing or person that the speaker cannot (as from not knowing or from forgetting) name
hand me one of those little what-do-you-call-its
went to what-do-you-call-her's house last week
Synonyms: what-is-it, whatsis, what's its name, what-you-call-it, what-you-may-call-it, whatyoumayjigger; compare doodad , gadget 1