Mark Twain used an explicit shibboleth to conceal a furtive shibboleth. Single-Sign-On via Shibboleth/SAML. A shibboleth is any distinguishing practice that is indicative of one's social or regional origin. Kull uses the phrase as a shibboleth in the story "The Shadow Kingdom". Samuelson admitted that "shibboleth" is an imperfect term for this phenomenon. The name became a shibboleth when sectarian tensions increased. From this episode we get the English word shibboleth. SP1 added Docker, Shibboleth, Network Teaming, and JeOS images. The following exchange is a shibboleth for Broad Norfolk speakers. In-jokes can be a similar type of shared-experience shibboleth. The city was named after Milan, Italy and is a shibboleth. Shibboleth was her Turbine Hall installation at Tate Modern in London. Proprietary extensions to the basic IdP-initiated flow have been proposed (by Shibboleth, for example).