It's exactly what it sounds like
Low Income White Girl Eyes is defined as...
A white girl with low-income eyes will stare at you with dull, vacant, soulless eyes and expect you to know that they like you. Oh, and they're kinda crazy. That's an understatement btw.
Why did the white girl with low-income eyes stare at the menu for 10 minutes?
Because she was mentally adding up her total with tax before committing to the side of fries.
Why does the white girl with low-income eyes love thrift stores?
Because it's the only place where she can buy "vintage" and "necessary" at the same time!