In some parts of the United States, especially western Pennsylvania and Ohio, it is also called by different names. Things like being a queer, or being an Anthony are commonly used synonyms.
Emily: yeah he looked pretty gay
When this term migrated to the U.S.A. and other English speaking Countries, without knowing the whole history of the term, people assumed it was gay and not G.A.I.
2. (noun) A human. Someone attracted to the same sex yet is always judged by whom they desire.
3. (noun) Someone who doesn't have the same rights as a heterosexual because of other's views on how love should be distributed.
'Oh did you hear he's gay?' 'Yeah he has a boyfriend!'