Donald Trump has challenged the world to work out what perhaps his most bizarre tweet ever means.
"Who can figure out the true meaning of 'covfefe'???" he posted. "Enjoy!"
The tweet was a reference to a bizarre post in which he wrote: "Despite the constant negative press covfefe". Almost immediately after deleting the tweet, he sent out the new challenge the world.
The answer to Mr Trump's question is still unclear. But it appears that he had been attempting to write "coverage", and had given up early and sent the post with the error in before it had been finished.
Mr Trump's new challenge was greeted by a range of responses online. Some suggested that it was code, while others said it was complete nonsense and didn't mean anything at all.
Some of the president's supporters said that they liked the word and even appeared to be adopting it as a badge of honour. But none of them gave a convincing definition of the word.
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