Clean somebody's clock Definition 1 of 2Pro Tip 1/3Sports Context Often used in a sports setting to describe a team's dominant victory over another. Our team cleaned their clock with a 5-0 win! Pro Tip 2/3Avoid Literal Don't mistake it for actually cleaning; it's about winning, not tidying up. He said he cleaned his clock, but he didn't mean it literally. Pro Tip 3/3Figurative Victory It's a figurative expression for achieving a decisive win, not involving real cleaning. She totally cleaned his clock in the debate competition.