Iowa eye exam
Sticking your finger into someones, or your own eye knowing that it is contaminated, most likely with poo particles.
How did your son get pinkeye?
He gave himself the Iowa eye exam!
He gave himself the Iowa eye exam!
Iowa eye exam
Placing a poop contaminated finger into your or someone else's eye
Kimmie totally gave herself the Iowa eye exam. Now she has wicked pinkeye!