Since “Beavis and Butt‑Head” premiered on MTV 32 years ago today (on 3/8/1993), I asked the omniscient robot (AI, that is), “did butt-head head-butt beavis?” and got this response:
While Beavis and Butt-Head have a violent and often abusive relationship, there's no specific instance in the show where Butt-Head head-butts Beavis. Butt-Head is known for slapping, insulting, and sometimes physically abusing Beavis, but he doesn't use head-butts as a method of attack.
Good to know (I guess); I never watched the show, so I wouldn’t have known this vital piece of information without the able assistance of AI.