flip the bird
竖起中指
口语·粗鲁手势
英文释义
to make an obscene hand gesture by extending the middle finger upward as a sign of anger, defiance, or disrespect
例句
He got so angry that he flipped the bird at the driver behind him.
典故来源
20世纪美国俚语，bird指代中指，flip表示快速伸出，源自古代侮辱手势的现代变体。