let off steam
Meaning
To release built-up stress, anger, or energy by doing something active or expressive.
Origin
From steam engines/boilers: releasing steam reduces pressure to prevent danger. By metaphor, people “release pressure” by expressing feelings or using activity to calm down.
Notes
Means venting or decompressing after pressure builds. Often positive (exercise, hobbies), but can imply angry venting depending on context.
Examples
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After the stressful meeting, I went for a long run to let off steam.
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He likes to play loud music when he needs to let off steam.
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We had a good laugh at dinner, which helped everyone let off steam.
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Try talking it out instead of yelling—you just need to let off steam.
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She went boxing after work to let off steam and clear her head.
Grammar & Usage Notes
Usually used as “let off steam” (no article). Verb inflects: let/lets/letting/let. Common patterns: “go for a run to let off steam,” “need to let off steam,” “let off steam by + -ing.”
Synonyms
- blow off steam
- vent
- unwind
- decompress
- let your hair down
Antonyms
- bottle up (your feelings)
- keep it in
- suppress (your emotions)