- protest againstsomeone or something
- protest about someone or something & protest againstsomeone or something1. to complain about someone or something. •
Valerie is always protesting about some problem at work.
•She filed a complaint that protested against her supervisor.
2. to rally or demonstrate against someone or something. •A number of people protested about the war.
•They were mainly protesting against the draft.
Dictionary of American idioms. 2013.