The Mc.Donalds Effect is when
expectations don't meet reality.
It is called "The Mc.Donalds Effect" because the pictures of the food you see on Mc.Donalds never look the same when you recieve the food.
It can be seen in many instances, such as buying
stuff off the internet. Or in general using the "Wish" app
Person 1: "Yo. Bro, I gotta show you these new kicks I bought of
the internet, they are sick and we're only 25$.
Person 2: "They're SICK! When do they arrive?
Person 1: "Next Monday..."
The next Monday arrives
Person 2: "Why aren't you wearing your
new shoes?"
Person 1: "They looked terrible when they arrived... Nothing like the picture in the ad"
Person 2: "That sucks man.... Guess thats the risk of buying stuff on
the internet."
This is an example of "The Mc.Donalds Effect"