buck the system › to refuse to follow the rules or customs of an organization: Both employees were later fired for trying to buck the system.
buck the trend › to do the opposite of what everyone else is doing: After 25 years as a corporate lawyer, he bucked the trend and went non-profit. › FINANCE, ECONOMICS to have good financial results when other companies, organizations, etc. are having bad ones: EMI managed to buck the trend, closing 80p stronger at 680p.