the drug whose one story is a permanently lost mind
like the massive dose picked his mind up and carried it off somewhere and put it down someplace and forgot where.
Context
The substance defined entirely by its single anecdote of catastrophe: a soldier whose mind the dose picked up and set down and forgot, found later in a locked institution belting Broadway in a dead-accurate Merman. The boys pass the story around as a warning and a thrill at once — the appeal and the terror are the same fact, a drug potent enough to carry a mind clean out of a man and lose it.