Krickis: This was one of various Noodleverse posts that were shared semi-publicly on my Discord server, but which were never posted online. I have permission to post them here for the first time.
There's not a ton of context to this, I think, Pasu was just feeling silly. The idea being that Fluttershy convinces Applejack to swap places, and there's confusion of how they do that exactly… It spawned a series of drawings to turn the rest of the mane six to Noodle Draconequii.