Speak of the devil
English
Meaning
An expression sometimes used when a person mentioned in the current conversation happens to arrive on the scene. Etymology Variation of “speak of the devil and he shall appear,” which can be traced back to “talk of the Devil, and he’s presently at your elbow” attested in 1666. Source Wiktionary
Equivalent idioms in other languages
This is how you express this idiom across languages and locales.
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- Spanish
Hablando del Rey de Roma (...por la puerta asoma)
Speaking of the king of Rome (...he's peeking through the door)