Hyperbole of my dog

The examples of hyperboles I found in the poem is exaggerating saying that her girl has a big mouth like her dog. And she said "Little girl is a dog she sleeps like a dog. The poet use hyperbole this way because she wanted to exaggerate saying her baby girl has characteristics of a dog. Or it could be the opposite way. She could be talking about her dog acting like her baby. Or she could be comparing them together, like their personality.