barmy on the crumpet

barmy on the crumpet

Eccentric or weird. In this phrase, a "crumpet" (a muffinlike pastry) is synonymous with one's head, and "barmy" means "yeasty." What do you think of John's strange behavior lately? I'm starting to wonder if he's a bit barmy on the crumpet.
See also: crumpet, on
Farlex Dictionary of Idioms.
See also:
  • crumpet
  • strange bird
  • strange duck
  • kookish
  • odd bird
  • queer duck
  • kook
  • oddball
  • kookie
  • kooky