get a line on(redirected from have a line on)
get a line on (someone or something)
To obtain helpful information about someone or something. I've got a line on a few job opportunities in the city. John's got a line on a guy who can fix the car for half the price.
get a line on
Also, have a line on. Acquire information about something or someone, come to know. For example, Sue got a line on some possible tennis partners, or The realtor has a line on a number of vacant apartments. Similarly, give someone a line on means "provide information about," as in The librarian gave me a line on the books I would need. This idiom uses line in the sense of "a direct course." [c. 1900] Also see get a fix on.
get a line onlearn something about. informal
1939 Raymond Chandler The Big Sleep I was trying to get a line on you, sure.