Hey there Cool Beans,
You missed an important verse in the middle:

My dog's bigger than your dog,
My dog's bigger than yours.
My dog's bigger 'cuase he eats Ken-L Ration
My dog's bigger than yours.
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Ken-L Ration has lean red meat
and lots of other good things
and when my mother goes to the store
she buys a m(b?)illion cans or more
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My dog's bigger than your dog,
My dog's bigger than yours.
My dog's bigger 'cuase he eats Ken-L Ration
My dog's bigger than yours.