# get out of bed on the wrong side

idiom

Source: https://englishreference.com/idiom/get-out-of-bed-on-the-wrong-side
Updated: 2026-08-10

## Meaning

To start the day in a bad mood for no apparent reason.

## Examples

- He is grumpy because he got out of bed on the wrong side.
- Everyone avoided the manager during the meeting because he clearly got out of bed on the wrong side this morning.
- She snapped at her colleagues for no reason, as if she had gotten out of bed on the wrong side and decided to take her frustration out on the entire office.

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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.