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
Miley	MIE-lee	English (Modern)
Shayma	-	Arabic
Roy	ROI (Scottish, English)	Scottish, English, Dutch
Geoffrey	['dʒefri]
Rick	RIK	English
Bastien	bas-TYAWN	French