Bart meets the original prankster, Andy Hamilton (guest voice Jonah Hill) and the two of them swap out the One Way sign for Boner Way. Very funny.
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The Simpsons Season 21 Episode 6 Quotes

Bart: Willie, I know you witnessed the most awesome prank since creation.
Willie: I'll nay speak to you of those dark times, Bart Simpson.
Bart: But if there was a more awesome dude than I, I need to know who he was, what he did and how many days detention he got.

Bart Simpson, that is a rebuilt Yugoslavian engine and there's not even a Yugoslavia anymore. Bring it back at once.

Skinner