kung fu /ˈkʌŋ ˈfuː/noun 4verb 1forms 3 noun4 •A Chinese martial art.Everybody was kung-fu fighting / Those kicks were fast as lightning — 1974 •The Chinese martial arts collectively. •(slang) A mastery of or expertise in a skill •(slang) A mastery of or expertise in computer programming, hacking, or cracking verb1 •To perform kung fu. formskung fued · kung fuing · kung fus