Related Clues:

• The word on the street?
• Legalese, say
• Arcane vocabulary
• "Bad" for "good," e.g.
• Specialists' idiom
• Village idiom?
• Very informal language
• Oglala, Onondaga or Ottawa
• Brooklynese, e.g.
• Jargon of a particular field
• 'All ___ is metaphor, and all metaphor is poetry': G. K. Chesterton
• Legalese, e.g.
• "A poor man's poetry": Moore
• Specialized jargon
• Challenge for ESL students