hold the bag背黑锅

　　Although the four of them robbed the bank with joined efforts, it was Joe who had been left holding the bag.

　　Dialogue:

　　Martha: Do you know what’s happened to Frank?

　　Nancy: Not an inkling. What’s happened?

　　Martha: He was caught stealing a file from a company.

　　Nancy: Sorry to hear that. He should have mended his steps(注意自己的言行）.

　　Martha: But the job was engineered by someone else.

　　Nancy: Did that someone else stand up?

　　Martha: Nobody likes to face the music（面对惩罚）， of course.

　　Nancy: So it was Frank who was left holding the bag?

　　Martha: yeah.