UNDER ONE'S BELT

adv. phr. , informal 1. In your stomach; eaten; or absorbed. Once he had a good meal under his belt, the man loosened his tie and fell asleep. Jones is talkative when he has a few drinks under his belt. 2. In your experience, memory or possession; learned or gotten successfully; gained by effort and skill. Jim has to get a lot of algebra under his belt before the examination. With three straight victories under their belts, the team went on to win the championship.