a fact, a remark or an event that settles an argument, a decision or a competition 起决定性作用的事实（或话语、事情） There was a lot of circumstantial evidence but they still needed a clincher, something cast iron that would carry a conviction. 有许多间接证据，但他们仍需要敲弯器，这种铸铁件可以定罪。 Sixsmith scored the clincher (= the winning goal) after 81 minutes. 81 分钟后，西克史密斯得了决定胜负的一分。