Meanings
Synonyms & antonyms
nounThe genuine thing, neither a substitute nor an imitation.
More synonyms by meaning
nouninformal usage attributing authenticity
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
- Scotsthe real MacKay
- Englishreal McCoy
Corruption of Scots the real MacKay, this latter attested in 1856 as “A drappie o’ the real MacKay” (A drop of the real MacKay). How “MacKay” became “McCoy” is unclear; first attested in the form “McCoy” in the US in 1908. The term is the subject of many folk etymologies, discussed at the Wikipedia entry.
More words from Scots
Full word history & related roots →Translations
Polish autentyk
- autentykTranslations
Cite this entry
real McCoy. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/real%20McCoy
“real McCoy.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/real%20McCoy. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “real McCoy,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/real%20McCoy.
Source: real McCoy on Wiktionary, CC BY-SA 4.0.