When you use two telephones at the same time to hear the same thing in both ears: A reciever on each ear, speaking into the two transmitters. This is useful in loud environments to block out the noise, or to amuse yourself when talking to someone really boring.
Because Nancy was so boring to talk to, Bob had to use phonephones. Coming through the two speakers, his voice sounded like Iron Man.
by weetodd March 26, 2008