cocked hat
noun
1- a brimless triangular hat pointed at the front, back, and top（前、后和顶呈尖形的）无边三角帽。
1.1
- historical a hat with a wide brim permanently turned up towards the crown, such as a tricorne〈史〉（帽边向上卷起的）宽边三角帽。
短语
knock something into a cocked hat
- utterly defeat or outdo something彻底击败; 绝对胜过。