Standard Lemma guide

what's-their-name

noun · pron · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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No pronunciation record was provided for this word.

1

noun

Meaning 1

A passing acquaintance of no importance or relevance.

Definition source: English Wiktionary via Wiktextract

Usage: derogatory, in-plural, informal

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

pron

Meaning 2

A person whose identity is unknown or forgotten (especially when better-known to the listener).

Definition source: English Wiktionary via Wiktextract

Usage: informal, singular

Examples

  • Near-synonyms: what's-their-face (what's-his-face, what's-her-face); whatchamacallhim, whatchamacallher; you-know-who; so-and-so; see also Thesaurus:what's-their-name

Meaning relationships

Synonyms: what's-their-face, whatchamacallhim, whatchamacallher, you-know-who, so-and-so

Antonyms: none provided

History

Etymology

Univerbation of what's + their + name.