Phrase guide

Joan's as good as my lady in the dark

proverb · 1 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.

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Pronunciation

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1

proverb

Meaning 1

Synonym of all cats are grey in the dark: Sex is enjoyable regardless of the status, physical attractiveness, or social status of one's partner.

Definition source: English Wiktionary via Wiktextract

Usage: archaic

Qualifier: potentially vulgar and offensive

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: all cats are grey in the dark

Antonyms: none provided

History

Etymology

From or alongside the use of Joan as a sexually available member of the lower classes found in related expressions such as He is our Ladies Chaplaine, but serves Ione and Joan's as good as this French lady. Ultimately a calque of Latin and Ancient Greek expressions such as πᾶσα γυνὲ τοῦ λύχνου ἀρθέντος ἡ αὐτή ἐστι (pâsa gunè toû lúkhnou arthéntos hē autḗ esti) and sublata enim lucerna quaevis mulier cuiusvis est similis (“all women are the same when the lamp is removed”), which Plutarch considered only accurate as an excuse to escape lecherous and adulterous men but which Erasmus considered a description of how all women would indulge themselves so long as witnesses and punishment could be avoided.