The term "m4p" in your search refers to a file format. Here is why you are likely seeing this:
Here is a helpful guide regarding Season 2 of Ghosts and an explanation of the technical terms involved. ghosts s02 m4p
The code appears to be a specific search or tracking tag often associated with social media content (notably on TikTok ) featuring the animated character and its friend Piu Piu . The term "m4p" in your search refers to a file format