To show resistance to or fight back against the established doctrines of a person or body of authority, especially the government. The IRS has been sending me tax refunds by mistake for years, but I've never said anything to them about it. It's my own private little way of sticking it to the man. The news reporter, under pressure from his bosses to only report the censored version of events, decided to stick it to the man and share the story in its entirety live on the air.