Frosty or FrostFire127 refers to someone who is fond of transgenderism. Most of them are openly zoophile, some even define themselves as shi/hir or zie/zim/zir.
Son : U-hm I f-eel l-ike I'm b-orn to b-e a frosty, a-m I w-eird?
Dad : Son, this is not natural! We gotta head to the church NOW!
Commonly known as Frosty, regards to a minor group of society outcasts who are diehard fans of the furry culture. Some even identify themselves as Zie/Zir, Ze/Hir or Fur/Furself.
Peter : I swear I saw some FrostFire127s kissing each other just now