Is it anything like
Aftershock?
This is a shooter that's very popular in bars where the music is too loud & the lights are too dim for my taste. Much beloved of University students, who probably see it as an alternative to cleaning their teeth when they get home. Old git, me.
Okay - I admit. It comes in a "hot" flavour - cinnamon - and I have been known to bring a couple back from the bar when I've bought a round.