Poncho is commonly used as a raincoat or as an outer. Originally worn in South America, and made of a thick piece of woolen cloth with a slit in the middle for the head. What about poncho as a T-shirt? Wow, there’s nothing possible in fashion. Take a look, a single large sheet of polkadots looks so fancy in a poncho-cut. Here’s tip for you, you can hide your boyfriend inside your poncho tee.