This was part of my october drawing prompts, the prompt was "meme pose"

Artist circles on Twitter (although now it's blue sky) have a bunch of "meme" drawing challenges. Most commonly "outfit" challenges where you have to draw your character wearing a specific outfit. These challenges are like artist "memes", seeing other people do them causes them to spread. Pose memes are less common, but there are a few.

This pose is the "cammy stretch" meme pose: https://knowyourmeme.com/memes/cammy-stretch