say sth. in favor of sb. or sth. 為某人或某事說話
If you have a chance to put in a word for me when you speak to the boss,I'll appreciate it. 你和老板交談時,如果能為我美言幾句,我會非常感激。
His uncle put in a good word for him and he got the job. 他叔叔為他說情,他才得到這份工作。
She was so unpopular that on one could be found to put in a word for her. 她太不得人心了,替她說情的人一個也找不到。