buff up
verb
buffed up; buffing up; buffs up
: to become stronger and more muscular or to make (someone or something) stronger and more muscular through exercising and weight lifting
She is buffing up for her role as a female boxer.
He buffed himself up by going to the gym every day.
—often used as buffed-upbuffed-up bodies
Examples of buff up in a Sentence
Recent Examples on the Web
Burger King is buffing up the Whopper for the first time in a decade.
—
Mike Snider, USA Today, 26 Feb. 2026
Ohio State has buffed up its interior line with Smith and the edge with Russaw.
—Cameron Teague Robinson, New York Times, 13 Jan. 2026
Like the yeoman boys are out in the barn, half-naked, working out, buffing up and wearing animal heads and preparing for some kind of an inchoate battle with the burghers.
—Literary Hub, 13 Nov. 2025
The quests in the other two books are there to give players more gold and magic items to buff up their characters.
—Rob Wieland, Forbes.com, 10 Sep. 2025
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Mike Snider, USA Today, 26 Feb. 2026
Ohio State has buffed up its interior line with Smith and the edge with Russaw.
—Cameron Teague Robinson, New York Times, 13 Jan. 2026
Like the yeoman boys are out in the barn, half-naked, working out, buffing up and wearing animal heads and preparing for some kind of an inchoate battle with the burghers.
—Literary Hub, 13 Nov. 2025
The quests in the other two books are there to give players more gold and magic items to buff up their characters.
—Rob Wieland, Forbes.com, 10 Sep. 2025
Cite this Entry
“Buff up.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/buff%20up. Accessed 29 Apr. 2026.
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