fluffy pie

A fluffy pie can mean a pie with a fluffy texture. However, it has a different meaning. Since the release of the second opening of Death Note, "What's up, people?!" people have been making the misheard lyrics for the song. One of the lyrics for the song was "WHAT'S UP fuanzai ippai" followed by "Hanzai kienai towa ni" which sounds pretty similar to "What's a fluffy pie? Oh, it's a teletubby.". It's common for misheard lyrics videos for the banger "What's up, people?!" to have that. So if anyone asks you what a fluffy pie is, make sure to answer "a teletubby".

Dude what's a fluffy pie?
It's a teletubby.