What is a filly colt mare stallion gelldin?

You've got a few terms mixed up there! Let's break down the terms for horse genders:

* Filly: A young female horse, typically under four years old.

* Colt: A young male horse, typically under four years old.

* Mare: A female horse that is four years old or older.

* Stallion: A male horse that is four years old or older and has not been castrated.

* Gelding: A male horse that has been castrated.

So, you're asking about the different gender and age classifications of horses!