Transmasculine flag earrings
FROM LGBTA WIKI
"Transmasculine or trans masc is a term used to describe a transgender person who typically was assigned female at birth (AFAB) but identifies fully or partially as a masculine gender. It can be considered umbrella term for people who were assigned a non-masculine identity as birth, but transitioned to a masculine identity.
Transmasculine people can also identify as other, non-masculine genders as well. For example, an androgyne person may identify as transmasculine, though typically one's masculine identities are more significant that one's non-masculine identities, or one wants to emphasize their masculine identity. Tranmasculine people are sometimes called FtM or F2M (female to male) (however, this isn't always accurate as not all transmasculine people are binary trans men).
Transmasculine people are typically AFAB, though they may also possibly be AXAB or UAB. AMAB people cannot be considered transmasculine as the usage of trans means that one was is has gone from a non-masculine identity to a masculine identity. AMAB trans people who identify with a masculine gender may identify as intramasculine and/or admasculine.
Transmasculine is sometimes used, not as a gender identity, but as a way to describe anyone who is assigned female at birth and undergoes masculinization, either through surgery, hormones replacement therapy, or other methods. Under this definition women who take testosterone to attempt to appear more masculine would be considered transmasculine.
The feminine equivalent to transmasculine is transfeminine. The neutral equivalent is transneutral. The AMAB equivalent is intramasculine."