Album: 2015's At.Long.Last.A$AP
What's it stand for? Traditionally, without the dollar $ign? The psychedelic drug lysergic acid diethylamide. Here, though, Rocky sings lines about "love/sex/dreams," and some versions of the A.L.L.A. single have a parenthetical in the title, making it "L$D (LOVE x $EX x DREAMS)."