acid that has dropped acid, and the wrung-out morning after — "even just LSD alone he observed…"
even just LSD alone he observed left you the next day not just sick or down but utterly empty, a shell, void inside, like your soul was a wrung-out sponge.
Context
The potency escalated past sense — acid that itself dropped acid — and the cost named on the far side: the hallucinogen hangover that leaves the self not merely sick but emptied, a wrung-out sponge. The two quotes bracket the appetite's arithmetic, the outsized high and the outsized void, which the boys weigh like connoisseurs pricing an experience by both its yield and its damage.