baby boom . baby boom {n.} A sudden increase in the birth rate. The universities were filled to capacity due to the baby boom that followed World War II. Categories: add yours children {n.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 » In RussianTo section: B Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Discuss