Related Clues:

• Koko or Washoe, e.g.
• Big lug
• King Kong, notably
• Gibbon, e.g.
• 'The Naked ___' (1960's best seller)
• Gibbon, for instance
• Ill-mannered person
• Gorilla or gibbon
• Churlish one
• Tree swinger
• Clumsy fellow
• Unmannered fellow
• Zoo biggy
• Big galoot
• Bumbling sort