buff

Undyed leather from the skin of buffalo or similar animals.

[…]; but is in a ſuite of buffe […]

A tool, often one covered with buff leather, used for polishing.

A brownish yellow colour.

1693, John Dryden (translator), The Satires of Decimus Junius Juvenalis Translated into English Verse, London: Jacob Tonson, Satire 10, lines 307-308, p. 203, […] a Visage rough, Deform’d, Unfeatur’d, and a Skin of Buff.

His face changed from tan to buff.

A military coat made of buff leather.

A diuell in an euerlaſting garment hath him ; / On whoſe hard heart is button’d vp with ſteele : / A Feind, a Fairie, pittileſſe and ruffe : / A Wolfe, nay worſe, a fellow all in buffe […]

A person who is very interested in a particular subject.

He’s a real history buff. He knows everything there is to know about the civil war.

Of the color of buff leather, a brownish yellow.

Unusually muscular.

The bouncer was a big, buff dude with tattoos, a shaved head, and a serious scowl.

Physically attractive.

That's right: I'm taking driver's ed next semester. Hiring an interpreter for CHS and the deaf school outta my own hefty pockets. You're welcome. Oh, and I'm going to get really skinny and buff. All slim like a swimsuit model.

To polish and make shiny by rubbing.

He was already buffing the car's hubs.

To make a character or an item stronger.

The enchanter buffed the paladin to prepare him to fight the dragon.

I noticed that the pistols were buffed in the update.

To modify a medical chart, especially in a dishonest manner.

"Sure thing, I buffed her, and they turfed her to urology, but she bounced back to me!" [...] They attempted to transfer her to urology by modifying her chart (buffing it) to request urine tests, but the doctors in urology sent (bounced) her back.

The implication of such an action is an invitation to buff the chart. The medical records department could have prevented the falsification by sending a copy of the chart to the attorney at the same time that they notified the hospital physician of the attorney's request for the chart.

To remove (graffiti), particularly when done by someone who is not a graffiti writer.

To strip to the bare skin.