not know from Adam

not know someone from Adam

Fig. not to know someone by sight at all. I wouldn't recognize John if I saw him up close. I don't know him from Adam. What does she look like? I don't know her from Adam.

Common Names:

Name	Pronounced	Usage
Mehmet	meh-MET	Turkish
Iahmesu	-	Ancient Egyptian
Mika (2)	mee-kah	Japanese
Dagfinn	-	Norwegian, Danish
SalomÃO	-	Portuguese
Liberius	-	Late Roman