smackdown
noun [ C ] US informal (also smack-down) uk/ˈsmæk.daʊn/ us/ˈsmæk.daʊn/
对决
an occasion when two people, companies, etc. compete with each other in order to win or achieve something
Early episodes suggest that his actions will lead to the mother of all smackdowns, with no clear winner. 早期的剧情表明，他的行动将导致一场最大的对决，没有明显的赢家。
The situation became a full-blown smackdown between three federal agencies - Homeland Security, State Department, and the Department of Defense. 情况变为三个联邦机构——国土安全部、国务院和国防部之间的全面对决。
A smartphone smack-down is brewing. 一场智能手机间的大对决正在酝酿中。
惨败，完败
a big and definite defeat
have you not learned by now that smugness will get you nothing so quick as a karmic smackdown? 难道你现在还不知道，自以为是会让你很快就遭到惨败的报应吗？
Does the fact that Connor received a smack-down mean he will back off? 康纳被击败的事实是否意味着他会退缩？
断然拒绝，否定
an occasion when someone refuses to accept something in a very definite way
The Republicans' across-the-board smackdown of the motion indicated the party's unity, he said. 他说，共和党对该提案的全面断然拒绝表明了该党的团结。
Human rights and civil liberties groups see this decision as a long overdue presidential smack-down that recognizes the basic right of everybody in the United States to due process. 人权和公民自由团体认为总统早该对此断然拒绝，因为承认每个人在美国都享有程序正当的基本权利。