Mexican wave
noun [ C usually singular ] UK uk/ˌmek.sɪ.kən ˈweɪv/ us/ˌmek.sɪ.kən ˈweɪv/ (US the Wave)
墨西哥人浪（指体育比赛中观众依次举起手臂站起复坐下，如波浪运动一般）
a wave-like movement made by a crowd watching a sports game, when everyone stands and lifts up their arms and then sits down again one after another
The crowd did a Mexican wave. 人们做出了一个墨西哥人浪。