The Unknown Dog Hobo introduces him to Poncho and Hudson.

The Grand Dog Hobo Lama is some sort of religious leader in Dog Hobo Town. After Chazz threw out the Poncho cast clone, he found it, and decided it was some sort of relic. This, along with the dog whisperer trick, was one of the main reasons Poncho was believed to be the dog hobo king. He gives a shriek to let dogs know that he has accepted someone.