What is my dog doing? 🤣

This little fluffy octopus is one of her favourite toys. Occasionally she’ll grab it by the tentacle and furiously whip it back and forth lol. I’m just so curious as to why she’s doing it!? Is it a prey drive thing? Or just so much excitement for one of her favourite toys? She also occasionally lays with it for 30mins at a time and nurses/suckles on it lol

https://www.dropbox.com/scl/fi/my6w0ysly7ltsjqe0emej/Ellie-shaking-toy.mov?rlkey=bbnyp4z2z4k33900i3vulpk6r&st=xjr0hphi&dl=0