[countable] a symbol of the fact that sb has been defeated or punished
（表示某人已被打败或已受到惩罚的）标志◆The poor performance in recent months has now claimed the scalp of the firm's chief executive (= he has lost his job).
近几个月来公司业绩不佳，使公司的总裁丢了乌纱帽。