Speak of the devil

Meaning

Mention someone who then appears.

Usage

Used when someone shows up shortly after being mentioned.

Origin & History

Origins and dates here are approximate summaries. Many idioms have disputed or unknown origins, and not every date has been checked against a historical dictionary, so treat specific dates and stories as a starting point rather than a citation.

Superstitions warned against naming the devil aloud.

English expression dating to medieval cautionary speech.