Victoria: I want to come out to my boyfriend's family while we're there for Thanksgiving, but I'm not sure the best way to do it.
Jessica: Hon, you just gotta stand up at dinner and slap your girl dick in the butter dish.
A man who wants to be a male-to-female transsexual, but wants to keep his penis. Delusionally believes his penis is a female organ (a "girl dick"). Usually attracted to women and claims to be a lesbian. Equally hated by both transphobes and actual male-to-female transsexuals.
Trans woman: Hey so how far is Lily in her transition?
Other trans woman: Lily's a girldicker, he's not going to transition any further than taking estrogen, and he thinks he can be a "woman with a penis".