From trans + fan.
transfan (plural transfans)
- (informal) One who is attracted to transsexual or transgender people.
2008, Rusty Mae Moore, “Satan and Lady Babalon: Polymory Again at 64”, in Tracie O'Keefe, Katrina Fox, editors, Trans People in Love, Routledge, →ISBN, page 154:[…] saying that she did not want to live if I wanted to throw her over for a man, especially a “transfan” type of man.
2013, Linda Vista, Siva's Arrow, Lulu.com, →ISBN, page 40:"Just make sure he's not a transfan. You know about them, right? Make sure if he's interested, that he's interested in who you are, not what you are."
2015, Amy Daws, London Bound[1], Star Hollows Publishing, →ISBN:"I'm...." he pauses, glancing over to Frank, then to me again, "I'm what they call a transgender admirer, or transfan. I'm attracted to transgender people," he concedes.