Optical illusion when someone walks/runs into a clear, very clean glass (usu. sliding) door, thinking the door's open.
Person #1- (bumping head on glass door) "Ow!"
Person #2- Looks like the windex effect gotcha.
Type your email address below to get our free Urban Word of the Day every morning!
Emails are sent from firstname.lastname@example.org. We'll never spam you.