When the crowd isn't booing because you're a good heel — they're booing because they genuinely don't want to watch you. Named after Sean Waltman's later X-Pac run, where audiences would visibly disengage during his segments. The worst kind of heat because it means apathy, not investment. Go-away heat. The crowd is telling you to go away, and they mean it.
"That's not heel heat, that's X-Pac heat. People are literally going to the concession stand during his match."