Until the cows come home
Meaning
To do something for an extremely long time, or indefinitely, often implying it will never happen or finish.
Origin
Imagine the bucolic scene of early modern Britain, where a farmer would let their cattle graze freely. Unlike other animals, cows are notoriously slow-moving and content, often straying far and returning to the barn only at their own unhurried pace, or when absolutely necessary. Their return wasn't a quick affair; it could take hours, or even seem like an eternity, especially if the pasture was rich and inviting. This naturally led to the phrase describing an impossibly long or indefinite period, rooted in the languid rhythm of rural life.
Examples
- You can argue with him about politics until the cows come home, but he'll never change his mind.
- She said she'd wait for her lost dog until the cows come home, refusing to give up hope.