erdigese is a private, coded language. it is spoken by putting the ''erdig'' before each vowel. it was around in the 1950's, and surfaced briefly in the 1998 movie ''slums of beverly hills.'' in the movie marisa tomei and natash lyonne carried on secret conversations no one else could understand. erdigese is difficul to read and write. it is easiest to learn when it is spoken. it only takes practice to become facile in a short time. it's origin is unknown.