An internet user claiming to be an Irish-American has been called out by an Irishman for spouting some grossly wrong history about "his" country.
In the clip, the American says he is "Irish" but doesn't actually provide any proof, apart from pulling down his shirt to reveal a tattoo of some kind.
He then claims that: "My ancestors were enslaved for over 1,000 years on the British Isles."
This, naturally, doesn't qualify him at all to be Irish - unlike Caoimhín, who responded to the video with a clip of his own.
In the TikTok video, which made it's way onto Reddit, Caoimhín starts: "Okay, number one, it wasn't 1,000 years, it was 800 - 800 years of oppression is a well-known Irish phrase, if you had any kind of real connection to your Irish heritage, you'd know that.
"Number two: No one was enslaved here. The Brits didn't have Irish people have slaves. In fact, it was the other way around. Irish people often took slaves from Britain. St Patrick came from Wales - he was brought to Ireland as a slave!
"Also, the fact that you're sitting there, calling yourself Irish and using the phrase 'British Isles'? Ask my a**e"
Caoimhín then explained in fairly comprehensive detail why the original clip was a big problem.
He said: "This drives Irish people up the f**king wall you know. You're not Irish. You're an American with a tenuous link to an Irish person from hundreds of years ago. You engage in this paddywhackery which is gross - do you even know what the symbol plastered all over your chest, in green of course, do you even know what that means? But of course, use it it justify racism. Away and s***e, ámadán."
People backed up Caoimhín majorly in the comments.
One person wrote: "I love that he called him an amadán. You know it is getting serious when the Gaeilge comes out."
A second added: "I'm not a particularly patriotic Irish man, but for some reason the mention of "The British Isles" cut me. Especially so, when the first fella was so ignorant and took the first results from Google as fact about the history.
To be fair, one American did respond: "My apologies to everyone who is actually Irish for the idiocy and cultural misinterpretation that you experience so often at our ignorant American hands, and especially this week."