Buhichuck

Buhichuck (ブヒチャック, Buhichakku) or Oinkchuck (Buhi is the Japanese equivalent of oink) is the boss of the "surprise zombies" in the dining room. At first glance, he looks like an ordinary pig's head mounted on the wall. However, he can come to life. He can also wield a pair of swords mounted below him as throwing weapons. He does this by using his concealed hands. According to him, there are surprise zombies hidden in every room of Doctor Hogback's mansion. After defeating the Surprise Zombies of the living room, Luffy, Franky, Robin and Zoro forced Buhichuck to show them around the castle. They didn't know that members of their crew were being picked off one by one for the zombie army. However, instead of helping them, the pig mount merely lead the team to a room that was controlled by an armored platoon of General Zombies. His shadow was stolen by Gecko Moria's "Shadow Asgard" technique in chapter 481.

Trivia
Bukichunk's unique laugh comes from the first part of his name, being Buhibuhibuhibuhibuhi, but since Buhi is the Japanese equivalent to oink, he is practically saying oinkoinkoinkoinkoinkoink.