A compound word from "Kinder",the German word for "children" and the English word "gallery", meaning "a collection of art for exhibition". Generally, a kindergallery is a collection of a child's artwork displayed in the home by the child's parents. The location is almost always the family refrigerator.
Joe: Did you hear that the Palumbos had to buy a new refrigerator?
Judy: No, why?
Joe: Apparently their old one is too small for the kindergallery now that the triplets have started school.
Uh, mom? Seeing as how I'm almost thirty, don't you think it's time to take down the kindergallery?