What does the phrase 'Putting the Spring in Springfield' mean?

I am reading the book about the Simpsons and I don't understand this line:

'Putting the Spring in Springfield.'

The line is the title of chapter from the book. I suppose the line 'put the spring' means breathing life or revival or something like that. Regarding the meaning of the word 'spring', it could mean grow out, put out, bubble up or occur. I am not sure whether I'm right or not, so that's why I'm here. Does it mean breathing life to Springfield? Can anyone please explain to me what does it mean?

Also I did some research on it, and I think this line may be related to the song "We put the spring in Springfield" from the Simpsons.

Link to the song on YouTube.

Link to the online book

Solution 1:

If you view the linked video, the song is a defense of Springfield's local whorehouse. "Spring" in this case seems to be used both in the sense of "provide an uplifting experience" (as in "put a spring in your step") and also as a mild sexual reference, referring to the "spring" outward of an erect penis. (There are some visual references in the video — for example, a jack-in-the-box popping out accompanied by the line "we put the [sound-effect 'boing'] ... in Springfield.")

Solution 2:

This is a common play on words, often done ironically.

For example:

He puts the fun in funeral.

Without more context, I can't tell whether there is actually something about springs that the writers are making a joke about, or whether they are just being absurd.