The term "sunshiny", often written as "sunshiney", refers to the phenomenon in which the user urinates on several household objects and thus causes their penguin avatar to emulate such actions. Several common objects include: coffee, toilets, glitter, rosemary, and West Virginia.

To perform sunshiny is considered an honorable task and typically causes the user to gain quite a bit of respect from the Club Penguin community. The trend is said to have started in 2009 alongside the Great Powerpuff Chats.