you never know (2)INFORMAL
This page is about the conversational phrase you never know (2)
You can say this if you think something could exist, or be happening, that you don't know about.
- "Why do we have to use code words on the phone?"
"You never know who could be listening."
- "Why do you keep searching with that metal detector?"
"Because you never know what's there. There could be buried treasure down there."
Also "you never can tell", as in "You never can tell what's there."
Lucy's Dad said, "Be careful with online dating. You never know
Contributor: Matt Errey