If someone or something is boxed in, he, she, or it cannot move, because of other people or things that are too close.

I was boxed in, and had to wait for the driver of the other car to get back. 我被堵在里面了，只能等另外一辆车的车主回来。

prevented from doing what you want to do

He feels boxed in at work and wants greater freedom to develop his ideas. 他觉得在工作上所受限制太多，想要更多的自由拓展自己的想法。