Donald Trump is infamous for his spelling. It can be seen on his Twitter feeds and is bashed for it every time.

His latest misspelling is one of his most interesting, however. He referred to British royalty and heir apparent, Prince Charles, as the “Prince of Whales” and not the Prince of Wales. This as he was defending reports that he would welcome "dirt" on his presidential elections rivals.

His gaffe caused social media to go bonkers with viral memes and tweets mocking Trump for this elementary error.

The Trump tweet of June 13 read:

"I meet and talk to 'foreign governments' every day. I just met with the Queen of England (U.K.), the Prince of Whales, the P.M. of the United Kingdom, the P.M. of Ireland, the President of France and the President of Poland. We talked about "Everything!" Should I immediately…..

"…..call the FBI about these calls and meetings? How ridiculous! I would never be trusted again. With that being said, my full answer is rarely played by the Fake News Media. They purposely leave out the part that matters."

Trump later corrected his misspelling but not after most of the world had another Trump gaffe to mock.

There are a lot of stories about Trump’s penchant for misspelling. Some websites even compiled a list of many of these misspellings.

Among a few of Trump’s more notorious typos: seperation, honered, councel, judgement, Phoneix, Marine Core, Special Council, National Emergy, Xi Xinping, Smocking Gun, and the immortal covfefe (his spelling for coverage). He even misspelled his wife's name as Melanie.

Some of Trump’s apologists claim his typos endear him to his right-wing Republican base and make him look like a common, everyday Joe.

GettyImages-Trump Make US Great
US President Donald Trump speaks at a 'Make America Great Again' rally in Phoenix, Arizona, on August 22, 2017. Reports suggest Trump is sending a political message that he is unbeatable in a fair election and if he loses, there might be election fraud. NICHOLAS KAMM/AFP/Getty Images

Trump’s misspellings appear to have something to do with his personality. Back in May 2017, a psychologist diagnosed Trump as a four year-old child.

Dr. Noam Shpancer Ph.D. wrote “the core Trump dissonance is that he’s an elderly man who possesses the outward appearance and trappings of adulthood -- and who occupies the public role we most strongly associate with adulthood -- but who is on the inside predominantly infantile. It is that specific dissonance that is wholly novel on the political scene.”

Dr. Sphancer went on to say Trump is “infantile” in this context is to say two related yet distinct things. The first is that Trump fails to demonstrate some of the behavioral and attitudinal qualities “we call ‘maturity.’”

The second is that Trump’s “cast of mind, the way he processes information, appears qualitatively different from an adult mind.”