english
1
general::
Phrase(s): Don’t I know you from somewhere? a way of striking up a conversation with a stranger, as at a party or other gathering. • Bill: Don’t I know you from somewhere? Mary: I don’t think so. Where did you go to school? • Henry: Don’t I know you from somewhere? Alice: No, and let’s keep it that way.
McGrawhill's American Idioms And Phrasal Verbs