Related Clues:

• Local form of language
• Spoken regional dialect
• (Thieves') slang
• Slang of a particular group, originally thieves
• Unfamiliar language or jargon
• Unfamiliar language
• Language (slang)
• Groat (anag)
• Regional (French) dialect
• Laymen don't understand it
• Language variant
• Non-standard dialect
• Way of speaking to fish and duck
• Group jargon
• Computerese, e.g