Once inebriated one snowy night last winter (after the application of Kiss-esque makeup, and before the sledding), the process of mixing strange and random drinks begun. It was then that we discovered how to make liquid popcorn.
As far as I can remember, liquid popcorn is equal parts Malibu and beer, I think Stella in this case. You may want to mess with the proportions somewhat, but once you've hit the sweet spot (the disgusting, disgusting sweet spot), the drink tastes like nothing short of popcorn.
Now, I don't particualy like popcorn, so maybe when you make this you will enjoy it considerably more than I did. Still, I recommend you try it, if only to say that you can make liquid popcorn.