详细解释:n. 大失策, 过失
英语解释：
名词 clanger:
a conspicuous mistake whose effects seem to reverberate例句：
The secretary dropped a clanger when she mentioned the cancel of the order to her boss who had just had a quarrel with his girlfriend.＂老板刚和女朋友吵了一架，所以秘书提到取消订货单的事，说得真不是时候。＂