/brush"up'/ , n.
1. the act or process of reviewing a subject, technique, or the like, for the purpose of renewing the memory, skill, etc.: He gave his Spanish a brushup before his trip to Mexico.
2. the act or process of eliminating or repairing minor flaws: He gave the collection a final brushup before putting it on display.
[ 1895-1900; n. use of v. phrase brush up ]