You almost never meet McCoy by itself in this meaning. It lives inside one set phrase: the real McCoy.

You almost never meet McCoy by itself in this meaning你幾乎不會單獨看到 McCoy 這個字有這個意思。It它 lives inside one set phrase只活在一個固定片語裡：the real McCoy正港的那個。

That means the true thing, not a copy, not a cheaper look-alike, and not a story someone dressed up. People say it about things they care about being genuine — a watch, a bag, a guitar, a signed shirt, even a recipe.

That means指的是 the true thing真正的東西，not a copy不是仿冒品，not a cheaper look-alike也不是便宜的相似品，and not a story someone dressed up更不是被人加油添醋的故事。People say it about人們用這個字形容 things they care about being genuine他們在乎是不是真貨的東西——a watch手錶、a bag包包、a guitar吉他、a signed shirt簽名球衣、even a recipe甚至是食譜。

If a stall sells a “famous” bag for a tiny price, that bag is not the real McCoy.

If a stall sells a “famous” bag for a tiny price如果一個攤子用很便宜的價錢賣一個「名牌」包，that bag is not the real McCoy那個包就不是真貨。

The phrase is a little old-fashioned and a little playful. Younger speakers often just say the real thing or genuine, but you still hear McCoy in films, books, and from older speakers. It is informal, not a shop label.

The phrase這個片語 is a little old-fashioned and a little playful有點老派、也有點俏皮。Younger speakers年輕人 often just say the real thing or genuine通常直接說 the real thing 或 genuine，but you still hear McCoy但你還是會在 in films, books, and from older speakers電影、書裡，還有從年長的人口中聽到 McCoy。It它 is informal, not a shop label是口語用法，不是商店標籤。

Though actually, nobody agrees where the phrase came from. Some people tell a story about a boxer, some about whisky, some about an inventor. Those stories are tidy; the history is messy.

Though actually不過事實上，nobody agrees where the phrase came from沒有人能確定這個片語是怎麼來的。Some people tell a story about a boxer有人說是關於一個拳擊手的故事，some about whisky有人說是關於威士忌，some about an inventor有人說是關於一位發明家。Those stories are tidy這些故事都講得很順，the history is messy但真正的歷史其實很混亂。

What has stayed is the feeling: this one is the true one, and the others are pretending.

What has stayed留下來的 is the feeling是這種感覺：this one is the true one這一個才是真的，and the others are pretending其他都是冒充的。