This classic black t-shirt features the humorous phrase "Knock Knock Who's There? Doctor" in bold white lettering across the chest. Made from a soft, comfortable fabric, this shirt is perfect for everyday wear and guaranteed to get a laugh. The short-sleeved design and relaxed fit make it ideal for casual outings, lounging at home, or making a statement. Show off your witty side with this fun and eye-catching tee!
