RadFems took the symbol for female and put it together with another symbol for female and voila, the symbol for
In the Sisterhood of Radical
Unfortunately the popularity of this
RadFems version of Lesbian-ANY "woman-identified woman who does not fuck men. It does not mean compulsory sexual activity with women".
Youth Trans critical Professionals and Gender Critical Professionals version of Lesbian-wait and see until the Lesbian is old enough to know she's a Lesbian (kinda like voting or drinking) and then support her if she chooses to transition or not to.
In short:The general public's version of Lesbian-Any two females doing anything together that might turn a male on.
See also Lesbians Need A New Symbol by Mrs Dirt.