not hold (one's) breath

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not hold (one's) breath

To not expect that something will happen and therefore to not wait or take action as if it will. The electrician said he'd be here before noon, but I won't hold my breath. She wrote a letter of complaint to the airline asking for a refund, but she isn't holding her breath.
See also: breath, hold, not
References in periodicals archive ?
PRECAUTIONS breathe carefully and evenly do not hold breath at any point, if uncomfortable stop.