The tuft on its head holds water. When the level runs low, it replenishes the tuft by siphoning up water with its tail.
– Pokemon Black Pokedex
Simipour is the water monkey, it’s based on the “see no evil” monkey, since its eyes are closed. It’s also always smiling and waving, which makes it look very happy. It also looks like it’s wearing a short dress, and has long flowing hair. Its tail looks like a fountain, which goes with its Pokemon species of “Geyser Pokemon”. Simipour can have the starter-only ability Torrent, from the Dreamworld.
Perhaps Simipour should be called “Simisoak”, because the other monkeys are Simisear and Simisage.
Stat-wise, it’s pretty fast. It has equal Attack and Sp Attack, but the Water moves it can learn are Special. It’s the only Pokemon to learn Scald by level-up.