The inabilility of those with XY (
male) chromosomes to
see anything that is clearly in sight. They require a XX (female) chromosome member of the population to guide their
eyes to the item within plain view.
Him (while peering
inside the refridgerator): Honey, I can't
find the mustard.
Her:
Stop manlooking. It's right there, behind the milk.
Him: Oh yes, now I see it, there it is.