Meaning of gentlemen's agreement

gen'tlemen's agree'ment

Pronunciation: [key]
  1. an agreement that, although unenforceable at law, is binding as a matter of personal honor.
  2. an unwritten agreement by a socially prominent clique, private club, etc., to discriminate against or refuse to accept members of certain religious, racial, national, or other groups.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.