Steal someone's shine Informal

To draw attention or praise away from someone who deserves it, often by outdoing them or drawing focus to oneself instead.

It’s usually said critically, implying the attention-drawing was somewhat unfair or inconsiderate toward the person who earned the spotlight.

The image comes from the stage, where a bright spotlight can be positioned in a way that outshines and visually obscures other performers standing nearby, pulling the audience’s eye away from where it should naturally go. “Shine” here works both literally, as brightness, and figuratively, as someone’s individual brilliance or moment of recognition, letting the phrase describe both a literal lighting problem in theater and a more general social situation where one person’s spotlight moment gets dimmed by another’s competing presence. It sits in the same family as the related, older “steal someone’s thunder,” both describing attention or credit taken away from its rightful owner, though “shine” leans more toward personal glory and “thunder” toward the specific announcement or achievement itself.

I don’t want to steal your shine, but I have some good news too.

He always tries to steal his sister’s shine at family gatherings.

She stole the new employee’s shine by taking credit for the idea in the meeting.

A: Everyone was congratulating him. B: Yeah, but she kind of stole his shine with her own announcement.