go/turn sour

go sour

To become unpleasant or troubling. Those two are bickering all the time now—I hope their relationship hasn't gone sour. Don’t bring up politics unless you want things to go sour real fast!See also: go, sour

turn sour

To become unpleasant or troubling. Those two are bickering all the time now—I hope their relationship hasn't turned sour. Don’t bring up politics unless you want things to turn sour real fast!See also: sour, turn

go sour

Fig. to turn bad or unpleasant. It looks like all my plans are going sour. My whole life is going sour right now.See also: go, sour

go/turn ˈsour

become less enjoyable, pleasant or good: Relations between the two nations have recently gone sour.See also: go, sour, turn

go sour

in. to turn bad or unpleasant. My whole life is going sour right now. See also: go, sour