wacky-tabbacky

wacky-tobacky

slang Marijuana. ("Tobacky" is a play on "tobacco," referring to the way marijuana is usually rolled up and smoked like a cigarette.) I could tell from his red eyes and goofy behavior that he had been smoking the wacky-tobacky again. I got some wacky-tobacky from my brother's friend. Wanna come smoke up with me later?
Farlex Dictionary of Idioms.

wacky-tabbacky

(ˈwækitəˈbæki)
n. marijuana. (Collegiate.) He gets that silly look in his eye from smoking “wacky-tabbacky.”
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • tabbacky
  • wacky-tobacky
  • crackpot
  • crackbrain
  • bet the farm
  • bet the farm/ranch
  • farm
  • ranch
  • bet the ranch
  • expound