The idiom "in the buff" originated in 17th century England, where "buff" referred to a yellowish-brown leather made from buffalo skin. Initially used to describe someone dressed in a buff-colored garment, the phrase evolved to signify complete nudity. It is believed to have undergone a playful transformation through wordplay. Nowadays, "in the buff" is an informal expression used to describe being completely naked, emphasizing the absence of clothing.

What is the origin of the idiom "in the buff" and when to use it?

英語での「in the buff」の定義と意味

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