A booga-booga Mask is an item found in Spyro: Shadow Legacy. It was used by the cavemen in Skelos Badlands as a way to praise the Gods.
At some point, Ooga took the mask and hid it from his tribe, and tried to frame Lumpy of stealing it, making the other cavemen mad at Lumpy, sending him to the Zoo of Death. Later when Spyro found the mask, Ooga became uneasy, which made the other cavemen find out that Ooga took it and blamed Lumpy simply because he didn't like him, and was told Lumpy now didn't like Ooga either and to go to the Cliff of Danger himself.