bandwagon

柯林斯詞典

1. N-COUNT You can refer to an activity or movement that has suddenly become fashionable or popular as a bandwagon. (指活動或運動) 潮流
...the environmental bandwagon. …環(huán)保潮流。
2. N-COUNT If someone, especially a politician, jumps or climbs on the bandwagon, they become involved in an activity or movement because it is fashionable or likely to succeed and not because they are really interested in it. (尤指政客追趕的) 浪頭[表不滿]
In recent months many conservative politicians have jumped on the anti-immigrant bandwagon. 最近幾個月，許多保守黨政客趕上了反移民的浪頭。

First one boy at school had that haircut and now they're all jumping on the bandwagon.
Now it seems that every single charity in town has jumped on the fundraising bandwagon.
All the kids began to collect and swap the cards , and it wasn't long before other companies got on the bandwagon.
Now we see another TV company climbing on the 'reality TV' bandwagon.
Coming after so many films recreating comic-book heroes , is this just another attempt to jump on the bandwagon?