sayakaba
Animalization of Miki Sayaka as a hippopotamus.
This is derived from a pun. One of Sayaka's famous lines from Mahou Shoujo Madoka Magica is:
* あたしって、ほんとバカ (I'm such a fool)
If you flip the characters in バカ (baka, meaning idiot/fool), you get:
* あたしって、ほんとカバ (I really am a hippo)
See also
* Gomadoka, an animalization of Kaname Madoka as a seal.
* Homurakko, an animalization of Akemi Homura as a sea otter.
* Mamikurage, an animalization of Tomoe Mami as a jellyfish.