shibboleth has definitions from the field of rhetoric
1
[ noun ] a favorite saying of a sect or political group

Used in print

(Edward P. Lawton, "Northern Liberals and Southern...)

When I question them as_to what they mean by concepts like liberty and democracy , I find that they fall_into two categories : the simpler ones who have simply accepted the shibboleths of their faith without analysis ; and the intelligent , cynical ones who scornfully reply that these things do n't count any_more in the world of to-day .

2
[ noun ] (rhetoric) a manner of speaking that is distinctive of a particular group of people

Used in print

(Brainard Cheney, "Christianity and the Tragic Vision-Ut...)

But the most notable thing about the incantation of these ex liberals was that the one-time shibboleth of socialism was conspicuously absent .

Related terms

manner_of_speaking

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