buff up
phrasal verbbuff up | buff yourself up
- (informal) to make yourself more attractive, especially by exercising in order to make your muscles bigger
- He buffed up to take the role of the commando captain.
buff somebody/something up
- (informal) to work on somebody/something to make them/it seem more attractive or impressive
- The team will have to buff up their tarnished image.
- The city spent $40 million buffing up the downtown area before the festival.