The idiom "take the shine off" means to diminish or reduce the value or importance of something. It is often used to describe a situation where something good or positive is spoiled by something negative or unpleasant.
For example, if someone receives a promotion at work but then finds out that their salary increase is not as much as they were expecting, it can "take the shine off" their achievement. Similarly, if someone goes on a great vacation but then gets sick on the last day, it can "take the shine off" their overall experience.
The idiom is often used in informal situations, such as in conversations with friends or family. It can also be used in more formal settings, such as in business or academic writing.
Overall, "take the shine off" is a useful idiom to describe situations where something positive is spoiled by something negative.
• The scandal surrounding the company's CEO took the shine off their recent profits.
• The cloudy weather took the shine off our picnic.
• Winning the award was a great achievement, but the controversy surrounding the judging process took the shine off the accomplishment.
• His sudden outburst took the shine off his otherwise pleasant personality.
• The poor quality of the sound system took the shine off the concert.
• The negative comments from the critics took the shine off the movie's box office success.