Does this sentence have any specific subtext?

Is this an idiom for clumsy?

Sentences like this are usually found at the beginning of the tree. Not 4 skills from the end.

I think it means "I am huge, strong, overpowering (and you are weak)". Mimi ni tembo, na wewe chozi. I am an elephant, and you, a little bird. [Chozi could also mean teardrop, but comparing a large animal to a tiny one seems to make more sense]. Comments?