Pronunciation: (klēn'up"), [key]
1. the act or process of cleaning up.
2. Slang.a very large profit: The company made a real cleanup on their new invention.
a. the fourth position in the batting order: Our best home-run hitter is batting cleanup.
b. the player who bats in this position.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.