- Restore to use; clean and renew. 2. Pitch a baseball dangerously close to the batter's head. 3. Finish off or kill; also, easily defeat. 4. Thrash or beat up.
Examples:
- I've dusted off last year's menu for the party.
- We'll dust off this team in no time.
Origin: Various senses from 1920s to mid-1900s.