"Despite the constant negative press covfefe," read the US leader's short tweet sent early Wednesday.
Was it an acronym? A secret message? Or just a typo?
Wags around the world weighed in with biting sarcasm, and #covfefe quickly became the top trending item on Twitter.
Comments included a mock Google translation of "covfefe" from Russian into English as "I resign," and comments like "Drain the covfefe" -- a play on Trump's promise to "drain the swamp" in Washington.
"'Covfefe is a great word, period! - Sean Spicer tomorrow," read one tweet, mentioning the president's spokesman. READ MORE