TV series example of the word

Game of Thrones Season 2, Episode 8
You need sour cherries to make it right.

Game of Thrones Season 2, Episode 8
The sour cherries was all crushed up and ready.

Game of Thrones Season 2, Episode 5
after negotiations went sour.

Game of Thrones Season 6, Episode 9
I have a jug of sour goat's milk

Game of Thrones Season 4, Episode 3
but the North's no better. The whole country's gone sour.