箍たがを外はずす

expression, godan verb (-su)

cut loose; throw off restraint; go wild

Idiomatic expression literally meaning 'to remove the hoop (from a barrel)', figuratively used for letting go of self-control, inhibitions, or social constraints, often in a celebratory or emotional context.

• 忘ぼう年ねん会かいで箍たがを外はずして飲のみすぎた。

  I threw off all restraint at the year-end party and drank too much.