Pumbaa is a warthog living in the Pride Lands who only appears in Kingdom Hearts II. He grew up in the Oasis with Timon and Simba, and together lived a carefree life until Nala found Simba and tried to convince him to go back to the Pride Lands with her. With the help of Sora, Donald, and Goofy, he and Timon pulled their courage together to help fight Scar's hyena army.
Pumbaa and Timon often say their motto "Hakuna Matata", which means "no worries" in Swahili.
 Kingdom Hearts II
Pumbaa is not seen until much later in the first visit, and has very few lines throughout. The only things worth noting are his almost-being-eaten by Nala, and his capture by the hyenas Shenzi, Banzai, and Ed which leads to a boss fight against the three hyenas.
While Sora and his friends were at the Oasis, he and Timon told them about Hakuna Matata. After Simba and Nala have an argument about going back to Pride Rock to take down Scar, the five of them enter the area chanting Hakuna Matata.
At the end of the final cutscene, he is shown to be quite nervous due to Timon's comment: "What if he [Simba] forgets to tell the predators who we are?" with Pumbaa shortly responding apprehensively, "Yeah, and I'M NOT GOING TO BE SOMEONE'S PORK DIIIIINNNNEEERR!" finishing in a panic and running off in a dash.
Pumbaa is scarcely seen in the second visit, and mostly only plays a role of hinting where you should go next. However, in the end, Pumbaa adds onto Timon's "Live for today" words by saying: "And put your past behind you!", moving in a carefree, joyous trot. He also shows courage by protecting Nala from Scar's Ghost up on Pride Rock, despite being frightened by the apparition.
As his name means in Swahili- thoughtless, careless, stupid, absentminded- Pumbaa has established such a lax and carefree life, much due to the philosophy of "Hakuna Matata," that he can be perceived as ignorant or passive. This is not the case, however, as most of his ideas are quite genius and/or helpful. As for passivity, Pumbaa will only excuse actions until they affect his friends. When that happens, he will charge to protect and help them. This is seen during the end of the first visit, when Pumbaa bravely fights, and pummels the hyenas in a fit of rage. It is also important to note that Pumbaa disapproves of anyone call him a "pig." Doing so will incite a surge of anger, and rage.
Pumbaa is a warthog with light tan fur and dark red cloven hooves. His belly is grey and his eyes are brown. True to his species, Pumbaa sports two large, ivory tusks jutting out of either side of his mouth. The tips of these tusks curve upwards sharply. Pumbaa has a large, flat snout which is pink at the front. His ears are set just behind each of his eyes. He has a very large mouth and a pink tongue. Finally, Pumbaa sports a tuft of shaggy brown hair on the tip of his tail and on the top of his head, the latter creating a mohawk-like mane.
Pumbaa first appeared in the 1994 film The Lion King. Just like in Kingdom Heart II, Pumbaa is Timon and Simba's best friend. When the young, cub Simba flees Pride Rock, Pumbaa and Timon find him exhausted and somewhat comatose in the wastlelands and raise him under the saying Hakuna Matata, meaning "no worries". After Nala persuades Simba to reclaim the throne from the villanious king Scar, Pumbaa follows Simba to his past home to help him reclaim his rightful place. Noteworthy is when Pumbaa frees Zazu and Timon from the Hyena's imprisonment upon being called "pig."
Pumbaa is the African word for "boar".