So what is a "Cliff"

Does anyone remember Cliff Barnes in Dallas? The Looooser. The dude who made all the misstakes and was the laugh stock of the 80s. In his honour any misstake made on our house is called a "Cliff".
Guess what. We have a lot of "Cliffs" in our house. But I won´t tell you what they are, you have to come and see for yourself!