Board Thread:General Discussion/@comment-6056721-20130808104558/@comment-19861320-20130915043123

Turning a blind eye literally means to ignore something. I think that the "blindeyes" are people in Gravity Falls who know of the town's strange goings-on but choose to ignore it for some (probably sinister) reason. So far, I think they include Stan, Soos, and Mckgucket.