Where does this definition of go sour on come from?
This entry for go sour on is sourced from GetWord Corpus, one of the dictionaries and corpora merged into Lughet.
Is go sour on a noun, verb, or something else?
In this entry, go sour on is tagged as 2v..
What is Lughet?
Lughet is a free trilingual dictionary covering nearly five million entries across Uyghur, Chinese, and English, drawn from more than ten source dictionaries and corpora.