I get a kick out of that scene in “The Wrestler” where Mickey Rourke and Marisa Tomei are lamenting the demise of ’80s rock. After singing along to Ratt’s “Round and Round,” they list off a few of their favorite bands — Rourke’s character lauds Guns N’ Roses, and Tomei’s sites “Crüe” and “Def Lepp.” “Then that Cobain pussy had to come around and ruin it all,” Rourke complains. The Ram was right: Nirvana’s explosion in the early ’90s ended the era of macho party rock forever. Maybe the last great album of that particular genre (great by the lowbrow standards of hair metal, at least) was Mötley Crüe’s Dr. Feelgood, which emerged at the close of the decade late in 1989. Peaking at #1 on the Billboard charts and generating five hit singles, it was Crüe’s most successful album, selling more than 7 million copies worldwide. But it was also the last album released before front man Vince Neil left the band for a decade, and they’ve never come close to duplicating its success since. Still, Mötley Crüe is back on people’s minds due to the recent Netflix movie “The Dirt,” which is based on the band’s collaborative autobiography of the same name. The film chronicles the band’s stereotypical rock & roll indulgence — and the eventual tolls of all that excess — building up to the release of their Feelgood opus. So, it’s a good time to reflect on that album and the era of rock gluttony that climaxed with it.