Trump administration officials say that the term refers to assassination, but lexicologists say it emerged from diner slang.

The slang origins of “86” go back to codes used in diners and restaurants as staff shorthand in the 1930s or so, said Jesse Sheidlower, adjunct assistant professor in Columbia University’s ...

Some people online are drawing comparisons to his infamous social media gaffe in his first term: "covfefe." The ...

What does ‘8647’ mean? Possible message behind Comey’s post Comey’s post was interpreted by some as saying to “86” No. 47 — Trump is the 47th president.