From Longman Dictionary of Contemporary Englishwhat’s his/her/its namewhat’s his/her/its name (also what d'you call him/her/it, what's his/her face) used when talking about a person or thing whose name you cannot immediately remember The hospital have just got a, what d'you call it, er ... a scanner. Is what’s his name still working there? → what
Examples from the Corpus
what’s his/her/its name• What about your commitment to - what's his name? 