Definition
To improve.
To become more muscular.
To study hard to learn a particular subject.
In Context
- "[…] Mr. Kurz was quickly seen in Europe as the poster boy of an ascendant right for a new generation, a political Wunderkind who had salvaged conservatism by borrowing the far right’s agenda, buffing it up and bringing it into the mainstream."
- "I'll need to buff up on my Italian before my trip to Genoa."