get up on the wrong side of the bed
Meaning
To wake up in a bad mood and be irritable or negative all day.
Origin
From an old superstition that starting the day on the “wrong” side brings bad luck; it became a metaphor for waking up grumpy and having a bad day.
Notes
Used humorously/lightly to explain someone’s grumpy mood. It comments on attitude rather than a literal cause; can soften criticism but may still sound dismissive.
Examples
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He must have gotten up on the wrong side of the bed—he’s been snapping at everyone all morning.
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If I get up on the wrong side of the bed, I try to go for a quick walk before I start work.
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Did you get up on the wrong side of the bed, or are you just stressed about the deadline?
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She apologized later and admitted she’d gotten up on the wrong side of the bed.
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Don’t take it personally; the boss just got up on the wrong side of the bed today.
Grammar & Usage Notes
Often used as “get up on the wrong side of the bed” or past tense “got up…”. Also common: “must have gotten up on the wrong side of the bed.” Fixed phrase; usually not reworded.
Synonyms
- wake up grumpy
- be in a bad mood
- be on the wrong side of the bed
- have gotten out of bed on the wrong side
Antonyms
- wake up on the right side of the bed
- be in a good mood
- be cheerful