It appears there may be a typo or misunderstanding in the question. Here is the breakdown:
Conclusion: You can perform a "Smoothie Move" dance anywhere in real life or in games with dance emotes (like Fortnite, Roblox, Just Dance), but it is not a playable game mode or location on the Webkinz site.
If you meant a specific mini-game like "Smoothie Maker" or "Smoothie Challenge" on a different platform (e.g., Club Penguin, Animal Jam, or a cooking game app), please clarify the exact name!