" topull one' sleg "(同某人开玩笑)是惯用语.To pull one's leg is an idiom.英语有很多惯用语.The English language has many idioms.惯用语用好了能够增强文章的可读性.Appropriate use of habitual sayings can increase an article's readability....

“惯用语”的英语可以翻译为：phrase，locution ...