Rotwelsch

Rotwelsch (German: [ˈʁoːtvɛlʃ], "beggar's foreign (language)") or Gaunersprache (German: [ˈɡaʊnɐʃpʁaːxə], "crook'slanguage", also Kochemer Loshn (from Yiddish "חוכמער לשון", "tongue of the wise") is a secret...