What does barmy mean?

barmy meaning in General Dictionary

high in barm or froth in a ferment

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  • informal or slang terms for psychologically irregular
  • marked by spirited pleasure

barmy meaning in Etymology Dictionary

1530s, "frothing, covered with barm;" see barm + -y (2). Figurative sense of "excited, flighty, bubbling with pleasure" is from c.1600. Meaning "foolish" (1892) might be an alteration of balmy.