hang a leg meaning in English

向后退, 犹豫不决
犹豫不定

You have your hands on thousands , you fools , and you hang a leg
“你们伸手就可拿到成千上万的钱，你们这群笨蛋，却在那儿犹犹豫豫！
In english football more than any other it is acceptable to test an opponent physically , to hang a leg in to see what will happen , to let them know you are there
在英国足球当中，人们习惯于从身体上去对付自己的敌人，他们习惯抬高自己的胳膊，看看会有什么效果，他们习惯以此来让敌人知道自己就在这。