Hermaphrodite
Hermaphroditism is the biological condition where an organism possesses reproductive organs of both sexes.[1] The term was also once used to refer to people who were intersex.
Chris, however, specifically applied the term "hermaphrodite" to refer to any person that he perceived as being "female", but with a penis. This included transgender women that hadn't received bottom surgery, as well as intersex people that he perceived as being female. In essence, Chris used the term the same way some people would refer to such people as "shemales", "dickgirls", or "futa".
As a stressor
During the Classic Era, Chris has shown on many occasions to be intimidated by women being depicted with penises. Considering his distaste for being seen as a "homo", as well as him expressing his longing for vagina, it would only make sense that at the time he'd be repulsed by the idea of a woman having a penis. This trait of his was exploited, and became a well-known means to troll him on several occasions.
When Chris had first discovered his ED page, and noticed Rosechu drawn with a penis, he tried to dispel the rumors of her being a gay man by creating an entire episode for the Sonichu comics, the infamous Episode 17. In that episode, Chris drew Rosechu naked on many occasions, putting great emphasis on the fact she had a vagina.
Chris as a hermaphrodite
Chris, after becoming a tomgirl, has ironically become one of the things he once winced at the thought of. During his transition, Chris has taken hormones, but never got bottom surgery.