
Not know somebody from Adam
Literal Meaning
The phrase is not about Adam; it's a way of saying you don't recognize someone.

Even though we worked in the same office, I wouldn’t know her from Adam.
Complete Stranger
Use the phrase to emphasize that someone is as unfamiliar to you as it's possible to be.

The man in the photo could be anyone – I don’t know him from Adam.
Astonishment
It often shows surprise that others expect you to recognize the person.

You know Mike from accounting? I don’t know him from Adam!
WordUp Chrome Extension
As you browse the web instantly look up words you don’t know.
Get Chrome Extension