K-hole

Let's not focus on her. That'll be like entering a bad K-hole you'll never wake up from.

Source: wiktionary

Recreational users call it "special K," and the euphoric, hallucinatory experience it induces the "K-hole."

Source: wiktionary

“They're getting their drugs mixed up,” she said. “If someone did a line of coke, it would be a very different size than if someone did a bump of ketamine, right? So if they're thinking it's cocaine and they do a line, they could go into a k-hole and be completely unable to move for hours. Maybe not hours, but for a while.”

Source: wiktionary