This black t-shirt features a playful "Knock Knock Who's There? Doctor." joke in a distressed white print. The short-sleeved shirt is casual and comfortable, perfect for everyday wear. The graphic design is eye-catching and makes a great conversation starter. Made from a soft-looking material, this t-shirt ensures comfort and breathability. It's an ideal choice for those who appreciate humor and unique style. Wear it casually with jeans or shorts for a laid-back look, or gift it to a friend who appreciates a good joke.