LetsWords
Idioms

The real McCoy meaning: the genuine one, not a copy

The genuine thing, not a fake: the letter was the real McCoy. Nobody agrees on who McCoy was, yet everyone knows the phrase. Pick the wrong article, and the original turns ordinary.

The real McCoy means the genuine thing or person, not a copy or a fake. The museum confirmed the letter was the real McCoy: it was authentic. People also use it for something of excellent quality: this coffee is the real McCoy. It sounds casual and a bit old-fashioned; in an essay, write genuine or authentic.

When would you say the real McCoy?

Learn to use English words freely in conversation

Start learning

be the real McCoy; see / get the real McCoy

  • The museum confirmed that the letter was the real McCoy, not a modern copy.
  • After years of hearing recordings, we finally saw the real McCoy perform on stage.
  • That wooden mask is the real McCoy; the maker signed it inside.

What changed

First versionThe dealer says this is a real McCoy, not a replica.

RevisionThe dealer says this is the real McCoy, not a replica.

Real with a feels natural, as in a real diamond or a real problem. But the real McCoy is the one and only original, so it takes the: this is the real McCoy. A was replaced with the.

Cambridge Dictionary

Real just means not imaginary: a real problem. The real McCoy is the original as opposed to a copy or fake. The genuine article means the same but sounds more neutral: The painting turned out to be the genuine article.

Your turn

Use the established idiom for the genuine original: This is ___ real McCoy.

(the / a)

Show the answer

the — There's only one original, so it's the real McCoy. The idiom isn't used with a.

Write about something that turned out to be genuine even though you had doubts, and how you found out.

The violin was the real McCoy; its serial number matched the maker's records.

Learn to use new words without mistakes

Write phrases with the words you are learning. LetsWords shows mistakes in usage and grammar, suggests corrections and explains them, and review helps the words stick.

Build my practice plan

Practise English at your level and for your goal. Get corrections and clear explanations of your mistakes.