kooky

kookie

slang Somewhat crazy, weird, or eccentric. My family always thought I was a bit kookie because of my unconventional lifestyle. A: "What's the deal with the kookie old lady who lives at the end of 16th Street?" B: "Who, the Widow Crawford? She's harmless, just a recluse who's gone a bit senile."

kooky

slang Somewhat crazy, weird, or eccentric. My family always thought I was a bit kooky because of my unconventional lifestyle. A: "What's the deal with the kooky old lady who lives at the end of 16th Street?" B: "Who, the Widow Crawford? She's harmless, just a recluse who's gone a bit senile."
Farlex Dictionary of Idioms.
See also:
  • kookie
  • kookish
  • kook
  • out there
  • be out there
  • case
  • away with the fairies
  • find (someone or something) a bit off
  • (as) crazy as a peach-orchard boar
  • boar