This is the poem that Amy recited to PJ and Emmet in the episode "Charlie Did It! " The boys were trying to write a jingle for Bob's Bugs Be Gone, but with no luck, they asked Amy for inspiration. By "inspiration", they actually meant some sandwhiches, but Amy then begins to recite her poem that she wrote in high school, named Locker. Locker was her first published poem, being put in the school literary magazine. When Amy has finished saying the poem, she says "It's so good, it's still so good".
Hey there, Locker,
Filled with my books and, papers,
I can't remember your combination!
37 right, 17 left,
But then what?
Am I locked out, or are you locked in?