A lesbian woman that never felt comfortable in female clothes; not even as a child. Nine times out of ten when the now adult stud was a child.
Another common term is "Stud". A stud is a dominant lesbian, usually butch. They tend to be influenced by urban and hip-hop cultures and are often, but not always, Afro-American. In the New York City lesbian community a butch may identify herself as AG (aggressive) or as a stud.