Verified answer

Roughly 2 weeks.. the alcohol alone wont go bad the the OJ will

Seriously?... just the THOUGHT of mixing Malibu rum and OJ makes me gag. The rum will stay good about as long as liquid Plutonium.. but the OJ will go bad in a week or two.

Whenever the OJ expires.

But what u should totally do is take some pineapple juice and mix it in there as well, that's a huge seller in my bar!

Around 10 days, but yea, the alcohol wont go bad.