boy hole

plural boy holes

1. informalthe anus of a younger submissive male
2. informaluncommonThe vagina of a trans man.

   “I don't have a vagina,” he explained, “I have a bonus hole. Other names that don't make me cringe are boy hole and front hole”.

   2015, Tiffany Jones, Andrea del Pozo de Bolger, Tinashe Dune, Amy Lykins, Gail Hawkes, Female-to-Male (FtM) Transgender People’s Experiences in Australia: A National Study, Springer, →ISBN, page 112

   Synonyms: bonus hole, front hole

3. Used other than figuratively or idiomatically: see boy, hole.