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English definition of “what's-his-name”

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what's-his-name

noun [S] uk ( also whatsisname)   /ˈwɒts.ɪz.neɪm/ us    /ˈwɑːts-/ informal
used for referring to a man or boy when you cannot remember or do not know his name: Have you invited Mike Whatsisname to the party?
(Definition of what's-his-name from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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