The female version of a metrosexual. Where a metrosexual is a predominately straight male who comes across more as a homosexual a femetrosexual is a mostly straight girl who presents like a lesbian.
Basically if -
metrosexual = faggy straight boy
femetrosexual = dykie straight girl
The term goes beyond tomboy which would be one type of femetrosexual.
The term could easily be used to describe a bi girl who comes across as a lesbian.
I thought she was gay?
Nah she's a femetrosexual