Also, no ifs, ands, or buts. No reservations, restrictions, or excuses, as in You'd better be there tomorrow, and no ifs, ands, or buts about it. This expression uses the conjunctions to stand for the conditions and objections that they introduce. The earliest phrase to appear was ifs and ands in the 1600s.

Where does the phrase But me no buts come from?

Coined in 1709 by Susanna Centlivre in the play The Busie Body.

How do you write no buts?

Absolutely no excuses, discussion, or protestations (about something). I don't care how, but you make sure you're at your son's party tomorrow—no buts about it! No buts—just do as I tell you!