Definition of let (or blow) off steam in US English:

let (or blow) off steam

phrase

informal
  • (of a person) get rid of pent-up energy or strong emotion.

    • ‘That was a raucous blast of rock energy, Adams letting off steam.’
    • ‘I needed something to help them blow off steam and energy.’
    • ‘Surprisingly the defence that this is war, or that our enemies do worse, hasn't been made as loudly made as when troops tortured prisoners to let off steam.’
    • ‘But she just didn't understand why she couldn't run around and let off steam with the other dogs.’
    • ‘But many voters see the referendum as a chance to let off steam over what they regard as the government's economic policy failures.’
    • ‘We've danced to let off steam, to express ourselves and get rid of excess energy, we've danced to attract a partner and for religious reasons.’
    • ‘If your child is bursting with energy, let him run around to let off steam before moving on to more calming activities.’
    • ‘Caroline, who is a part-time support worker for Young Carers, believes children such as Steffanie need a weekly outlet to let off steam and be children.’
    • ‘Sometimes I think the only thing they achieve is that people can let off steam.’
    • ‘Playing does much more than just help kids let off steam, according to City of York Council, which has launched an initiative to get more youngsters enjoying themselves.’
    give vent to one's feelings, speak one's mind, sound off, lose one's inhibitions, let oneself go
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