By using these words you can end any conversation, denote the finish of a project, or excuse yourself from any situation with authority. It's almost like... magic.

When you eat dirt for the first time and leave your family to build a shack in the woods

Phrase used to 'close' the Marauders Map, making it blank and causing it to appear as a normal piece of parchment until the words "I solemnly swear I am up to no good" are spoken, which activate it. (Part of the Harry Potter book series)

A palace dedicated to the Harry Potter world. Really awesome where kids can go get sorted and get dorms and take classes and eat in the great hall every night. The palace gets over 50 members per day which makes it awesome.