Definition:A way to say 'Bravo!' or 'Good job!' by slapping someone's hand in the air; to congratulate someone.
表示喝彩或者干得好,动作就是在空中与别人击掌,以此来恭喜别人。
Example:
1) Nice shot! High five, dude!
好球,让我们来high five。
2)They exchanged a high five and went on with their own business.
他们相互击掌打过招呼后,便继续各行其事。