"You don't fill my eye" is an Arabic idiom.
When looking at somebody, and if that somebody doesn't fill your eye (namely, doesn't occupy all the space in your eye in order for him to be seen clearly and well), that person is not someone you would deign to speak to or look at. He isn't at the same level of intellect or class as you. You see the person as trifling and contemptible. This saying is patently degrading, however it used playfully.
1: Why won't you talk to me, or don't I fill your eye?
2: Perish the thought! You know your value and worth to me, it's just I'm in no mind or mood. Forgive me.
1: Why are you looking at me like that?
2: You don't fill my eye.
In the second example, because the person doesn't fill his eye, occupy all his eye, axiomatically to look at something in more detail we look at length and closely at it. But here he's looking closely out of disgust and no matter how long or how close he looks he won't occupy all his eye space because he sees him as contemptible as it is possible to be.
Any similar idioms?