With one more ! than !!!, Gravy Train!!!! prepares its assault on the nation’s capital. Describing themselves as, alternately, “’80s rap bitches” and the “B-52’s bastard daughters,” the Oakland, Calif., musicians offer up frantic bubblegum pop fortified mainly by Casio beats and smart, if often unsavory, imagery. Founding member and songwriter Chunx explores such topics as her crappy love life and her “frightening split affliction of burgerphilia/ nymphomania” with frank lyrics and attitude to spare. In the song “Ghost Boobs,” a woman laments her post-diet shrunken breasts: “Gazoyngas a plenty, back pains she had many!/For such knockers hooters funbags boys were not even ready…/It was a fad diet, she had to try it/Chrissy Snow looked pretty hot, so Thighmaster? Just buy it!” Bandmate Funx provides accompanying keyboards and vocals, while Hunx and Junx kick in with harmonies and NC-17-rated dance moves. Come on, ride the train when the band plays with French Toast and The Vanishing at the Warehouse Next Door, 1017 7th St. NW. $8. (202) 783-3933. (Anne Marson)