Just like Second hand smoke, you may be in danger of second hand penis. The act of toching ones shaft, penis, or balls and then shaking hands or touching another person, thus transfering your touch unto them.
Matt goes to the bathroom and fires one off. He then goes to class and shakes hands with Adam. Adam is now a victim of Second Hand Penis, and may now be considered 1/3 gay.
by Captain Tanker February 2, 2008