to give somebody a black eye
01
to physically hit someone in the eye, causing visible bruising
Informal
例
He got into a fight and gave the other guy a black eye.
She accidentally walked into the door, which gave her a nasty black eye.
02
to damage someone's reputation or credibility
Disapproving
IdiomInformal例
The scandal gave the company a black eye and hurt its public image.
His controversial comments gave the politician a black eye before the elections.
