have hair have hair {v. phr.}, {slang} To possess courage, fortitude, guts, sex-appeal. I like him, he's got a lot of hair. Categories: add yours {slang} {v. phr.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 To section: H Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Discuss