"Oh, I'm fucking dog-o, I don't know who that is"
Also known as K.K. Slider
Dog-o is just Mario in a K.K. Slider costume. Jack just calls him Dog-O because he doesn't know who he is. He is a dog playing a guitar.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.