Let off steam
English Idiom
Meaning: To release pent-up energy or emotions by engaging in some activity that helps to reduce stress or frustration. It's often done to prevent oneself from becoming overwhelmed or making rash decisions.
Origin: The idiom 'let off steam' originates from the era of steam engines, where excess steam needed to be released to maintain safe pressure levels. This concept was later adapted to describe the release of emotional or mental pressure in a similar way.
