from Wiktionary, Creative Commons Attribution/Share-Alike License
- An expression sometimes used when a person mentioned in the current conversation happens to arrive on the scene.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. mention someone's name who just then appears
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. (Wiktionary)