意思:

n. 塞口物；讨论终结，箝制言论；（非正式）（专业喜剧演员的）噱头，笑话；（牙科的）张口器

v. 塞住……的口；钳制……的言论；使窒息，使作呕；（非正式）插科打诨，讲笑话

He gagged on his own saliva.

他被自己的口水呛住了。

The media comments on this issue have been gagged by the government.

关于这个事件的媒体评论被政府封锁了。

He covered up his mistake with a gag.

他用恶作剧掩盖了自己的错误。

He was bound and gagged and left in a cell for three days.