know from Adam

not know somebody from Adam

to have never met someone and not know anything about them Why should I lend him money? I don't know him from Adam.

Name	Pronounced	Usage
Salacia	-	Roman Mythology
Toiba	-	Yiddish
Feroze	-	Urdu
Shockley	['ʃɔkli]
Sumner	['sʌmnə]
Evaristus	-	Ancient Greek (Latinized)