Exactly! It's a common expression to shoo someone off.

Literally it translates to "Don't put yourself" where "put" is the closest I can think of to the verb "meter", which is sort of what you do when you insert something haphazardly instead of carefully.

Truly literally the words are "No + self + put" and the conjugation of "meter" into "meta" makes it clear the subject is "you"