Finrosboy refers to an individual which identifies as both rosboy and finboy.
The individual may also be any gender modality (eg. cis, transfem, transmasc, non-binary, etc.) as long as there's a connection to being male/masculine and fingender.
History and flags
The term and flags were coined by Tumblr user TMNBFF/Kasatate on October 13th, 2022.[1]