superfight noun3 •A bout between two championship title holders.Ken Shamrock (right) is the current owner of the Ultimate Fighting Championship superfight belt and will defend his title February 16 against Kimo Leopoldo. — 1996 •A fight between a superhero and a supervillain.Then back to a period of villain of the week, interrupting that with a superfight that created a new superheroine from an innocent bystander. — 1998 •A particularly large or important fight.After you called last night — there was a superfight w/me,& Mom & Judith — I told my mother I was seeing Marc & she had a fit of course. — 1965 formssuperfights