not so hot not so hot or not too hot {adj. phr.} Ineffective; not very good. His plans to rebuild the house in a hurry obviously weren't so hot. Categories: add yours {adj. phr.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 To section: N Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Post my comment