know one in high places know one in high places {v. phr.} To be connected with people in power. Ted's grandfather was the mayor of Chicago so he knows people in high places. Categories: add yours {v. phr.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 To section: K Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Discuss