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./