go bananas

present singular third person goes bananas · participle present going bananas · past went bananas · participle past gone bananas

1. idiomaticinformalTo get angry; to go mad.

   I just told her she couldn’t have any pudding until after dinner, and she went bananas!

2. idiomaticinformalTo become silly or excited; to go crazy.

   The music was going bananas with immensity at this point.

   1982 August, Douglas Adams, Life, the Universe and Everything (The Hitchhiker’s Guide to the Galaxy; 3), London: Pan Books, →ISBN, page 49

   1 more example

   As my colleague Glenn MacDonald, an economics professor at Washington University in St. Louis, told me when I asked him if all these tech companies had gone bananas, “It all depends on how you think about risk aversion.”

   2023 June 6, Ian Bogost, “The Age of Goggles Has Arrived”, in The Atlantic