A person attracted to only one other person. The person they are attracted to may be any gender. Specifically pertaining to those who stayed with their significant other when they discovered their gender identity.
A person who is romantically and/or sexually attracted to talking canines such as Scooby Doo, Scrappy Doo, or Marmaduke.
Person 1: I'm coming out as scoobsexual, and I'm not a mistake.
Person 2: understandable. I'd like to tear up Marmaduke's ass tenderly as well, mah boi.