Poo brain

Pea brained horse is really Ice Queen in a horse costume. She wore it to find out why Fionna and Cake are always so happy.


The Pea brained horse has a dark purple body and wide eyes. It's tounge always appears to be sticking out. It has long, pink hair and a pink tail.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.