The drag brunch is a phenomenon that’s sashaying its way across the country, from Bushwick, N.Y., to Waikiki, where Wang Chungs Karaoke Bar holds a monthly event. In February, the Comedy Central series “Broad City” included a scene with the characters proclaiming “Drag brunch, we must!” and August saw the release of “Drag Queen Brunch,” a cookbook and history on the drag scene in New Orleans by Poppy Tooker (Rainbow Road Press).