Yes, “Barbenheimer” is a term now. It’s a freaking meme, and a quite well done one at that. Indeed, it’s well enough done IMRHO that I’m posting about it – mostly because I find the image above disturbingly compelling.
And, I’m actually pretty sure that there’s some deeper sociological meaning to the Barbenheimer meme’s prevalence and popularity. After all, Barbie in many fundamental ways is the child of Oppenheimer’s work.