what-do-you-call-it
noun
variants:
or what-do-you-call-them
or less commonly what-do-you-call-her
or what-do-you-call-him \ ˈ(h)wä|tə⸗ˌ⸗⸗ , -wə- , -wȯ- , |tdə- \
plural -s
Definition of what-do-you-call-it
: a thing or person that the speaker cannot (as from not knowing or from forgetting) or does not wish to name
hand me one of those little what-do-you-call-thems