Just in time for a pre-Halloween (cross)dress rehearsal of sorts, San Francisco’s Trannyshack comes to L.A. in all its garishly glossed glory. Boys, girls and boys done up as girls of all shapes, sizes and colors are sure to convene for this dragged dance party, featuring Dave Rape on the decks and an ass-tounding procession of queeny performances. Kim Burly, Raya Light, Peggy L’eggs, Syphilis Diller, Mercy Fuque, Detox Icunt, Ambrosia Salad, Fade Dra, Tammie Brown, Squeaky Blonde and others take the stage and Frisco’s fabulous Heklina hosts. Echoplex, 1154 Glendale Blvd., Echo Park; Fri., Oct. 23; trannyshack.com. Another club that began in San Fran, Blow up, offers its annual L.A. Halloween haunt, with nonstop DJ mayhem from Sammy Bananas (NYC), Totally Michael (Live!), Ben Orpstu (Dancism), Aaron Castle (Rhonda), Steven Bloodbath and Dr. Disko Dust (Detroit). Demonbabies provide the visuals and Shadowscene shoots the ironic costumes. 2324 Hunter St., dwntwn.; Sat., Oct. 24; myspace.com/blowupla.