From Italian tutti quanti.
tutti quanti pl
- All, everything, everyone; all that, all of those.
- 1796, Edward Gibbon, Memoirs of my Life and Writing, p. 77:
- his illiberal use of Voltaire, Hume, Buffon, the Abbe Reynal, Dr. Robertson, and tutti quanti can be injurious only to himself.
- 2010, Tony Judt, New York Review of Books, Blog, 11 Mar 2010:
- I knew my Foucault as well as anyone and was familiar with Firestone, Millett, Brownmiller, Faludi, e tutte quante.
tutti quanti m (invariable) (Feminine: tutte quante)
- everyone, all and sundry