1. Scootaloo is chicken
Origin::
At S1E17 (Stare Master) CMC is helping Fluttershy rescue her chickens back. When on way. epal, apple Bloom teases Scootaloo as "Chicken". This thing annoys Scootaloo very much. This thing start spreading many sites such Memebase, Know Your Meme and more. Many peminat-peminat are creating silly imej e.g.: Makanan which chicken flavoured, areleady photoshopped sejak switching the chicken with Scootaloo.

lebih info in: link

2. Rarity is marshmallow
Origin:
Due her kot color, she known to be marshmallow sejak fans. peminat-peminat makes many fanart like a marshmallow with Rarity's mane.

lebih info in:link

3. Fluttershy is a tree
Origin:
On S1E21, Mane 6 is on way to Appleloosa sejak train. Ponies are chatting in train and Fluttershy is appeared and say: "I'd like to be a tree...". This thing are keep spreading anywhere.

lebih info in: link

4. Colgate/Romana/Minuette's hair is Toothpaste
Origin:
One of background kuda, kuda kecil is known as Colgate/Romana/Minuette is berkata as toothpaste. Because one of her name is same as one of the toothpaste brand: Colgate. Also her mane and tail is designed as toothpaste.

lebih info in: link

5. Pinkie Pie can break the 4th wall
Origin:
Pinkie Pie who known of her silliness are berkata can break the fourth dinding like what she do in S1E9 and S1E21. Many peminat-peminat made fanart like she can pass the screen and other.

lebih info in: link

6.Blob Ponies/ Chubby Ponies
Origin:
On Deviantart. A user called Setacy is make a fanart of chubby ponies with simple face features.
This quite popular on Tumblr and there are a ask blog about it.

lebih info in: link

Links:
1. link