Related Clues

• Cuckoo
• Cracked
• Off-the-wall
• Ridiculous
• Bats
• Off one's trolley
• Eccentric
• Daft
• Wacky
• Screwy
• Like a fruitcake, in more ways than one
• Touched
• Cockamamie
• "The ___ Professor"
• Like Jerry Lewis's professor
• Like marzipan
• Harebrained
• Like a certain cinematic professor
• Slaphappy
• Like Jerry Lewis' professor