get a line on(redirected from have a line on)
get a line on somebody/something
to get information about someone or something It sounds like you've already got a line on where the problem is.
get a line on somebody/something(American)
to get special information that will help you find someone or do something Detectives hope to get a line on the suspect from the fingerprints he left.
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.