Definition.com
The Grandchild is a wonderful thing to have. One ought never to have children, only grandchildren.
Definition.com
The Grandchild is always so full of energy because they suck it out of their grandparents.
Definition.com
A Grandchild is of the belief that their grandparent is the oldest thing in the world. And after two or three hours with them, they believe it, too.
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