Die Hard movie saying Yipi-Kay-Yay ***** ******!?

Okay now for that saying would it be illegal, or copyright if I used it? Details, details please!

(Best answer goes to the person that answers the question above WITH detail...with legal reasoining and such, whatever, just answer)
Update: EDIT:
Thank you all so far for the answer, but I DO want to use it for a story/movie/game, so should I really ask permission, or what? (Best answer goes to the person that also add this in their answer ;))
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