Oops!! My Penis Fell Out Mens Penis T-Shirt. Simply tuck this shirt in and you will immediately become the center of attention wherever you go! Everyone wont help but be able to look down and see the huge ultra-realistic fake penis coming from your pants. Great at parties and bars this tee sometimes dubbed the "dick shirt" , "penis fell out tee", and "cock shirt" is a unique way to break the ice in any casual situation.