"MtF" stands for "Male to Female" and refers to people who were born male but feel they are female inside. Sometimes they may take various steps, such as hormone therapy or surgery, to make their outward appearance better reflect how they feel inside. The goal is to live in harmony with your inner self.
MtF (Male to Female): The Sexiom Handbook
Definition and designation of the term MtF (Male to Female) from the Sexiom Handbook. Quick and briefly.