double G
n.— «Georgina, you see, is not a “genetic girl,” or “double G,” in the parlance of the transgender barflies who gathered one recent Saturday at the Silver Swan, a German restaurant on East 20th Street.» —“Beauties in Heels, and the Men Who Love Them” by Denny Lee New York Times Oct. 2, 2005. (source: Double-Tongued Dictionary)