说曹操曹操到 (shuō cáo cāo cáo cāo dào)

说曹操曹操到

(shuō cáo cāo cáo cāo dào)
English Translation:“Speak of the devil and he will appear.”

Meaning:
This proverb is identical to the English version and is used when someone appears unexpectedly after being mentioned.

Example:
我们刚说到他，说曹操曹操到，他就进来了。
(We just mentioned him, and “speak of the devil and he will appear”—he walked in right then.)

Source: Hello Mandarin