What: Italian citrus-vanilla liqueur shot straight-up
If you'll indulge a sustained Godfather metaphor (and you sorta have to, because we're doing it), Jagermeister is like Don Corleone, and Fireball his son, Michael. The older generation of challenge shot, and the new. Tuaca is Fredo -- next in line for the throne, but never quite getting the boost over the hump into true mainstream acceptance. In Colorado, though, this brownish-gold liqueur is an offer you simply can't refuse thanks to early-aughts evangelizing efforts by bartenders & Brown-Forman, the brand's parent company.
Patricia Calhoun did a brief examination of the spirit's rise for Westword, tracing its ski-town popularity back to a pair of bartenders who, much like Bob Carter in Charleston, just kept pouring the stuff (and drinking it themselves) until it became "a Colorado thing." It did, so much so that the brand began advertising with that very slogan despite the fact that it had previously marketed itself as what it was: an old Italian digestif.