Which one was it? Because an offline friend gave me a cartomizer with some experimental juice that was really "cappumisu", intended to be a cappuccino-tiramisu fusion thing or something, and it didn't taste like kittycat pipi, but it did have this really odd aromatic, get-up-in-your-sinuses and suffuse them with stingy-adjacent oddness.
BUT after it had reposed for a few weeks, it tasted like strong coffee with sugar but no cream.
So maybe try letting yours nap for a while, and revisit it.
I've noticed that most juice tastes just awful when you get it, like it was annoyed by the airplane ride, and will take weeks to get over the jet lag.