bandwagon
nounUK /ˈbændˌwæɡ.ən/
US /ˈbændˌwæɡ.ən/
A bandwagon is a big wagon that carries a band in a parade.
The band played happy music from the bandwagon during the parade.
OTHER MEANINGS
2. A popular activity or idea that many people join because others are doing it.
Everyone at school started wearing the same shoes, so I jumped on the bandwagon too.
3. A political group or movement that is gaining many supporters.
The candidate's bandwagon grew quickly after the first debate.
4. To join a trend or cause that is already popular.
Many companies climbed on the bandwagon of selling reusable bags.