The point where a person has a great loss of mental and motor skills due to consuming copious amounts of drugs. Aisle 9 is the place where feral folk reside.
"I am so fucked up," says Hi-Meh. Temmy resoundingly concurred and stated, "Aisle 9 has arrived!!" To which Hi-Meh replied, "I'm fucking rollin'. But that's to be expected when we are on day 2 listening to Victor Calderone and you SNOML'd the shit outta me."