The lyrics you’re referring to are a humorous parody of the song “All Star” by Smash Mouth. The parody goes something like this:
Somebody once told me the world was macaroni,
So I took a bite out of a tree.
It tasted kind of funny, so I spit it at a bunny,
And the bunny started cursing at me.
These lyrics are part of a playful variation that has been circulating as a joke, often shared in online memes or in informal settings