A "different state" or "next" universe of thought.
XXXTentacion both created and defined this word.
"This show is so deep it's got me in a gekyume."
"I'm in such a gekyume after doing this shiii--."
"You're still in the norm while I've ascended to a whole other gekyume."
To get high as hell. Sent straight through all 5 layers of the atmosphere. Absolutely scorched; mind-fucked; blammed.
Guy: "Bro, I'm so fucking blammed right now."
Bro: "Guy, dude this pen got me blammed OD."