A prostitute who can only do one position.
Dave: was the prostitute any good?
Carl: nah, she was a one trick pony.
Long hair that is half up and half down.
Look at that girl over there with the princess pony, she looks like a real life princess.
Riding a pony mean to date someone that is much shorter than you
A beautiful person who dies at your house party. They can be a celebrity, but that is not a necessity. It does not imply that you are responsible for the death, merely that you enjoy the notoriety that accompanies such an event.
Desiree OD'd at Tanya's house. Definitely her trophy pony.
A short kid that has his own theme song.
Me:Omg who is that?
*kid walks around in elvis costume*
Roni: I’m Roni Teh Poni, and thank you. Thank you very much.