lie like a rug
撒谎，讲假话
口语·厚颜撒谎
英文释义
to lie or deceive someone convincingly and without remorse
例句
He said he was at home all night, but he lies like a rug—I saw him at the bar.
典故来源
源自地毯平整覆盖地面的形象，比喻谎言铺天盖地、毫无破绽。