Like the mechanical beats of techno, the computerized ticktock rhythms of Jamaican dancehall are never viewed ambivalently; they’re either seen as hypnotic or monotonous. One of the major employers of dancehall syncopation is Kingston reggae rapper Beenie Man. This twentysomething self-proclaimed “original badman” and “romeo gangsta” released his first album at the age of 10 but has attained more attention for a series of singles issued during the past four years. Whether vocalizing about how a “Woman Get Me Kinky” or his own chanting skills, this young wordsmith spits outs his slang-filled verse swiftly and exuberantly. At 11 p.m. at the House of Leo, 701 Lamont St. NW. $20. (301) 422-1728. (Steve Kiviat)