The act of simulating Winnie the Pooh in real life by wearing nothing but a smallshirt, preferably red, but not required.
Person 1: Aww shit that bitch just got flashed by some drunk dude with only a shirt on.
Person 2: Yup, you could definitely see his dick and all. That bitch just got Winnie the Pooh'd
The act of masturbating, while only wearing a tshirt, and being totally naked from the waste down. Made famous by Winnie The Pooh who never wore bottoms.
I had a Winnie The Poohwank last night, tshirt on and nothing else.