Boip

The slang term used to describe the butthole of a feminine male to that of a pussy, particularly a femboy. The slang term femboy tends to purposefully be misspelt femboi which is also followed up by pussy-- leading to the shorthand form boi-p or boip.

Emmerson: Man my boip sure is sweaty today.
Normal Person: Your what?
Emmerson: My boip! You know? My boi pussy UWU.
Normal Person: Get the fuck away from me.