You said that King's Landing
smelled of horse dung and SOUR milk.
Game of Thrones Season 5, Episode 3
after negotiations went SOUR.
Game of Thrones Season 2, Episode 5
I have a jug of SOUR goat's milk
Game of Thrones Season 6, Episode 9
but the North's no better.
The whole country's gone SOUR.
Game of Thrones Season 4, Episode 3
And for you, Factory Burrito Grande,
no cheese, no SOUR cream...
The Big Bang Theory Season 3, Episode 14