From https://en.wiktionary.org/wiki/shibboleth https://en.wiktionary.org/wiki/shibboleth : 1. A word, especially seen as a test, to distinguish someone as belo

From https://en.wiktionary.org/wiki/shibboleth https://en.wiktionary.org/wiki/shibboleth : 1. A word, especially seen as a test, to distinguish someone as belonging to a particular nation, class, profession etc. 2. A common or longstanding belief, custom, or catchphrase associated with a particular group, especially one with little current meaning or truth.