- Meaning
- This idiom means to release pent-up emotions, stress, or energy through vigorous activity, venting, or relaxation. It suggests relieving pressure in a healthy or expressive way, often used in contexts of frustration, anger, or overwork, with a sense of catharsis.
- Origin
- The phrase comes from 19th-century steam engines, where excess steam was released to prevent explosions. It appeared in American English by the 1830s, with an 1837 *Knickerbocker Magazine* article using ‘blow off steam’ to describe emotional release. By the late 19th century, it was common in literature, including Mark Twain’s works, reflecting industrial-era imagery. Its use grew in the 20th century, especially in psychology and workplace contexts.
- Variants
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- Blow off some steam
- Let off steam
- Examples
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- After a tough week, she blew off steam by dancing all night at the club.
- He blows off steam by going for a long run whenever he’s stressed.
- Let’s blow off some steam at the arcade after these exams.
- The team blew off steam with a heated debate, clearing the air before the project.
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