You Must Be Irish T-Shirt – You must also be Irish because my dick tells me so. Our You Must Be Irish T-Shirt is under the Funny T-Shirts section of our store. As one of our best designs, this Funny T-Shirt features a leprechaun with a sneaky smile On its front that says You must be Irish because my dick is Dublin As one of our cool and comfortable tshirts it makes a great gift for someone who likes Irish joke. Our shirts are made from premium quality blank tees that are 100% Cotton. Our You Must Be Irish T-Shirt is incredibly comfortable and it is made to last. Our Funny T-Shirts are made in the colors and sizes to meet your taste. If you have any questions or suggestions regarding our You Must Be Irish T-Shirt or any of our other Humorous T-Shirts we will be glad to respond to your e-mail but be sure to let us know the product name.