Lesbian
a girl who likes girls, not guys.
she is not attracted to men.
no, she will not do a threesome with you.
no, she isn't a lesbian because "ShE HAsn'T fInD THe rIGhT gUY"
and no, you should not fetishize lesbians
(oh and lesbians can be attracted to trans women, because they're women)
girl : I am a lesbian !
random guy : I'm sure I can make you change your mind
girl : no.