At 2.40 p.m. IST Mr. Trump's "covfefe" tweet had more than 120,000 retweets and had been shared 39,000 times, according to Twitter figures. What made "covfefe" extra curious is that Trump didn't delete the tweet until six hours after it was initially posted.
Using the hashtag "covfefe", Twitter users speculated over the reasons behind the tweet.
What do you do about a problem like covfefe?
Press secretary Sean Spicer played it straight at an afternoon briefing when reporters asked about the puzzling tweet.
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Not for the first time, a Donald Trump tweet has lit up the Internet. However, about an hour later - after "covfefe" was full-on trending - Teigen sent a follow-up tweet expressing her true feelings on the situation: sadness and anger.
For a few hours, while most of us were likely sleeping, things went insane.
Fresh off Trump's first official trip overseas, his administration is looking for ways to respond more aggressively to allegations of Russian meddling in the 2016 election and revelations of possible ties between Trump's campaign and Moscow.
Another suggested "covfefe" was becoming a popular name for babies in states that voted for Trump.
Someone bought a "covfefe" license plate in California, and there are already "covfefe" shirts and hats available for sale. Jimmy Kimmel lamented that he'll never write anything funnier than the term. "Goes back to bed". Merriam-Webster also weighed in with a tweet.