The definition of buff is slang to describe a muscular person.(adjective)
An example of buff is Jillian Michaels, the celebrity personal trainer.
Buff means to smooth, clean or shine by rubbing.(verb)
An example of to buff is using a many textured foam block to smooth and shine finger nails.
A buff is a person who is a big fan of or knowledgeable about something.(noun)
An example of buff is someone with their house decorated in David Lynch film posters.
See buff in Webster's New World College Dictionary
Origin: earlier buffe, buffalo < Fr buffle < It bufalo, buffalo
Origin: ME & OFr buffe: see buffet
See buff in American Heritage Dictionary 4
Origin: From obsolete buffle, buffalo
Origin: , from French buffle
Origin: , from Late Latin būfalus; see buffalo.
Origin: From the buff-colored uniform worn by New York volunteer firemen around 1920, originally applied to an enthusiast of fires and firefighting.
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