Tinky Winky (also known as The Slendytubby) is a major character of the Slendytubbies series and one of its primary antagonists when infected. Tinky Winky was an experiment subject along with his friends — Dipsy, Laa-Laa, and Po. He was tested in a futuristic house within a wild surface known as the Main Land and, just like his housemates, was not aware of his situation. One day, the Purple Tubby ate a Tubby Custard together with his companions, which made him evil