steal somebody's thunder
idiomPart ofthunder
steal somebody's thunder — idiom
1. to take attention or praise away from someone by doing or saying what they had p
1.idiom
Definition
to take attention or praise away from someone by doing or saying what they had planned to do or say, often before they get the chance.
Example
Roya had prepared a big announcement, but her colleague stole her thunder by sharing the news first.
My sister wore the same dress to the party and stole my thunder completely.