Dragon Ball Super: Broly Booklet Reveals Some Brand New Scenes From The Movie!
If you are unfamiliar with him, he is a creature from Vampa and is called ‘Bah’. Bah looks like a green furred attack dog yet with the body of a snake. He is the who became Broly’s first friend and sparring partner. Broly says his pelt is the ear of his first and only friend, Bah. Bah is one of the giant serpentine creatures that live in the craters of Vampa; Cheelai and Lemo never saw one, so Broly explains that they are bigger even than Frieza’s Spaceship.
When he was a child, part of his training was learning to dodge the attacks of Bah, named after the sound he made when he attacked. Eventually, Bah came to see him as a friend, and no longer attacked him. Paragus was however unhappy with this development as it interfered with Broly’s training, so he shot Bah in the head with a Ray Gun, severing his ear. Bah never trusted Broly again and wouldn’t come back, so Broly resolved to start wearing Bah’s ear so that they could always be together.