I just googled puke, because I google everything nowadays. So there's this word: emetophile. I believe it is an adjective, depicting an emetophilliac.
a sexual fetish in which an individual is aroused by vomiting or observing others vomit.
That's definitely intriguing.
When emetophiles put emetophilia into practice by actually vomiting, especially on a partner, it is called a Roman shower, after the supposed frequent induction of vomiting at Roman feasts.