sour on

verb

soured on; souring on; sours on

1

informal : having a bad opinion of (something)

She was sour on politics in general.

2

US : to stop liking or being interested in (something) or to cause (someone) to stop liking or being interested in (something)

Investors have soured on (buying) the company's stock.

Many fans have soured on the team after years of their losing.

The disappointing result of the election soured her on politics.