A drink largely marketed at the gay community, particularly in England. Gays drink Disaronno straight, but 'super-gays' drink it with coke, or, worse, DIET coke. If you see a man drinking Disaronno, and you're not in a gay club...run, because you actually are in a gay club.
Oli: "I need to buy more Disaronno."
Oli: "Cause I'm really gay."
Alex: "You're not going to...mix it with anything are you?"
Oli: "Yeah. Coke."
Alex: "Aww no."