“Smocking” leads to mocking.

The Merriam-Webster Dictionary, the bible for American English, needled President Trump Monday for adding an unnecessary “c” to the word “smoking” in an early morning tweet.

“Today in Spellcheck Can’t Save You: ‘Smocking’ is a type of embroidery made of many small folds sewn into place,” Merriam-Webster staffers tweeted, linking to the entry for the word in the dictionary.

Trump apparently meant to type “smoking” instead of “smocking” as he blasted away at Special Counsel Robert Mueller on the social media website.

“Democrats can’t find a Smocking Gun tying the Trump campaign to Russia after James Comey’s testimony. No Smocking Gun…No Collusion,” the president wrote.

The tweet came three days after federal prosecutors tied Trump to felony violations of campaign finance laws in sentencing papers filed by federal prosecutors in Manhattan on Friday against his former fixer and attorney, Michael Cohen.