Since there are no official measurements for this drink, I decided to just fill my glass with half Kahlua and half root beer. Your measurements should be done with the utmost precision.
I didn't have actual Kahlua, but I used coffee liqueur. It says "imported" on the bottle, so I assume it's some top-shelf stuff. The drink itself delivers on the promises of the Slutty Pumpkin; it does in fact taste a lot like a Tootsie Roll. If I have one suggestion, it's don't go for the joke shot like I did up there -- do some actual measuring. The first one I made had way too much coffee liqueur and not enough root beer. Once I remedied that oversight, the drink was pretty delicious. So much so that I had three more and had to place the experiment on hold while I took a nine-hour nap on the floor.
The next night, I picked it back up.