The idiom don't hold your breath means that something is unlikely to happen soon, or may never happen at all, so don't expect anything soon.
This comes from the idea that a person can only hold their breath for a short time. If something takes too long, they would have to breathe before it happens.
This comes from the idea that a person can only hold their breath for a short time. If something takes too long, they would have to breathe before it happens.
They say the repairs will be finished next week, but I would not hold my breath.