Go sour Meaning in English
expression
Definition
To turn bad, fail, or become unpleasant. Used for food that becomes sour or spoiled, and for situations or relationships that don't work out.
Usage & Nuances
Often used for both literal (food spoiling) and figurative (relationships or plans failing) situations. Common with 'milk', 'relationship', or 'plans'. It's informal but very common. Don't use 'go sour' for just anything turning bad—typically for processes originally expected to be good.
Example Sentences
The milk will go sour if you leave it out of the fridge.
basic
My friendship with Emma started to go sour after the argument.
basic
If you don’t watch the sauce, it will go sour.
basic
Their relationship really started to go sour after he lost his job.
natural
Things started to go sour between us after that holiday.
natural
I had high hopes for the project, but it all went sour in the end.
natural