turn sour

Usually, he said, a bombardment of measures leads voters to turn sour on propositions presented to them.

There are female friendships that begin as idealistic but turn sour.

There are chants of "sack the board" during the game and the relationship between the club and supporters starts to turn sour.

But in 2021, the relationship started to turn sour.

The Apple Cup may now turn sour, with Washington and Washington State now in different conferences.