A roseboy refers to a GNC (
gender non-conforming) boy/male. Or also known as a boy who dresses femininely.
The more popularized term, femboy, is said by some to be a
transphobic slur used to called transgender women or mtf transgender people still male while they identify as female and are female. Roseboy is a new word to replace the slur that is comparable to shemale
My friend, Aaron, is a roseboy. It just means he dresses femininely. Oh, and his
girlfriend is a thorngirl!