Bats
Else clues• Crackers
• Bananas
• Beyond batty
• Bonkers
• Cracked
• Crackpot
• Crazy
• Kook
• Loony
• Off one's rocker
• Plumb crazy
• Wacky
• Crackers
• Bananas
• Bats
• Beyond batty
• Bonkers
• Cracked
• Crackpot
• Crazy
• Kook
• Loony
• Off one's rocker
• Plumb crazy
• Wacky