simmer down . simmer down {v.}, {informal} To become less angry or excited; become calmer. Tom got mad, but soon simmered down. Categories: add yours {informal} {v.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 To section: S Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Add my comment
