WNW: Shibboleths

Shibboleths are fun. Unless you're an Ephraimite, that is.
Just the word makes me smile. Generally speaking, they're a single word that easily distinguishes a person as not belonging to another group because of the way they say it.
It comes from the story in the Bible, in Judges 12, verses 5 & 6. Not a happy story. The Gileadites managed to defeat the Ephraimites in battle. When the refugee Ephraimites tried to cross the Jordan river, they were given the Hebrew word shibboleth to say to prove...