# go bananas

idiom

Source: https://englishreference.com/idiom/go-bananas
Updated: 2026-08-10

## Meaning

To get angry; to go mad.

## Examples

- My boss will go bananas if we miss this deadline.
- When the fans saw their favorite band walk onto the stage, they went bananas and started cheering loudly.
- The manager went bananas upon discovering that the entire inventory had been misplaced, shouting at the staff until the office fell into a tense, uncomfortable silence.

## Origin

From bananas (“crazy”).

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.