to let something loose or release it from control, often with sudden force or intensity.
From 'un-' (reverse) + 'leash' (from Old French 'laisse,' a rope for a dog). The word literally means to remove a leash, and evolved to mean releasing anything from constraint.
The word perfectly captures the image of someone taking off a dog's leash—suddenly all that pent-up energy goes wild, which is why we use it for releasing anger, creativity, or power all at once!
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