gentlemen's agreement
Noun
Meaning
a personal agreement based on honor and not legally binding
Source: WordNetSynonyms
Hypernyms
Examples
At the same time, a " gentlemen's agreement " was struck between the clubs to exclude non-white players from professional baseball, a bar that remained until 1947.
Eventually, a compromise was reached with the Luxembourg compromise on 29 January 1966 whereby a gentlemen's agreement permitted members to use a veto on areas of national interest.
The essence of a gentlemen's agreement is that it relies upon the honor of the parties for its fulfillment, rather than being in any way enforceable.
Zoss (2004), p. 136. An injury ended Walker's major league career, and by the early 1890s, a gentlemen's agreement in the form of the baseball color line effectively barred black players from the white-owned professional leagues, major and minor.