whole-ass adjective 1verb 1forms 3 adjective1 •(slang, vulgar) Complete; total.Did he just eat that whole-ass bag of candy without offering to share? He's a grown-ass man acting like a twelve-year-old! verb1 •(slang, vulgar) To perform (a task) completely and carefully.Never half-ass two things. Whole-ass one thing. — 2012 formswhole-assed · whole-assing · whole-asses