a joke whose effect is achieved by visual means rather than by speech (as in a movie)
sight gag的用法和样例:
例句
There is always a standing gag in his company. 他的连队里一直流传着一句老笑话。
Meanwhile, Harvey Lipschultz gets ready to perform in another way, not knowing his song has become a running gag passed down through every generation of students. 利哈维准备以新方式演绎他的新作,奈何他的作品早已成为各年级学生之间流传的笑话。