Who was spit mcgee in my dog skip?

There's no character named "Spit McGee" in the book "My Dog Skip" by Willie Morris. It's possible you're thinking of a different book or character.

Could you provide more information about where you encountered this name? Perhaps you can recall:

* The context: Was it a movie adaptation, a TV show, a different book, or something else?

* The character's description: What did this character do or look like in the story?

With more details, I can help you figure out who you're thinking of.