I was using definition number 4 -_-
boi
1. in the lesbian community, a young transgendered/androgynous/masculine person who is biologically female and presents themselves in a young, boyish way; a boidyke; often also identifies as genderqueer.
2. in the gay community, a young gay man;
3. in the BDSM community, someone who presents themselves in a young, boyish way and is usually a bottom/submissive;
4. an alternate spelling of boy often used by young teenage boys.