Do you know any unfriendly word games I can try?
You could add the additional constraint that the words have to insult the guesser based on their unique psychological vulnerabilities. Hope that helps!
Freestyle rap battles
You're right, that's the canonical unfriendly word game!
Perhaps give the Argument Clinic a call.
FYI https://en.wikipedia.org/wiki/Argument_Clinic
Posting on HN counts.