A person who is ardently devoted to a particular subject or activity
To give a gleaming luster to, usually through friction
He was muscular and buff beneath the trench.
In the short time since he left, she had forgotten how buff he was.
In colour Anopheles is usually brownish or slaty, but sometimes buff, and the thorax frequently has a dark stripe on each side.
Randy, a science buff, was in the top third of the graduates and was also his class president.
Her eyes skimmed his perfect, buff body before the pain in her hand finally registered.