What does "To jump" on the bandwagon" refers to?

Question

"To jump" is an infinitive used as what part of speech?

Answer 1

First to correct your grammar in your question it would be What does "to jump on the bandwagon" refer to?

Second it means to go along with the group or the most popular choice. Sometimes we use it with sports and call someone a bandwagon fan if they only become a fan of a certain team when they are winning.

Answer 2

Bandwagon--The concept of going for what is most popular.

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