Whosiewhatsit

noun, slang

noun, slang ·Moderate ·College level

Definitions

Noun
  1. 1
    A person or thing that one does not know the name of. informal

Synonyms

All synonyms
chingaderachummydingbatdingusdooberdoodad

Etymology

A concatenation of the phrases "Who's he? What's it?"

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.