Possible Clues:

• Swift beasts' house in backward Scottish isle
• Boorish sorts
• Raise voice over surprise from old rude, swift types
• Brutes
• Brute creatures encountered by Gulliver on his travels
• Swift's brutish men
• Brutish characters that looked like humans in Swift's Gulliver's Travels
• Loutish types
• Swift's brutish race
• "Gulliver's Travels" brutes