A person that has habitually been ignored and craves attention. Afraid that others will not listen to them so they need to talk over everyone else.

You mean Voice Immodulation syndrome? "Those who suffer from voice immodulation are unable to control the pitch or volume of their voice. Also known as Van Horton's Syndrome, VI is a recognized psycho-medical condition which you may have read about in Newsweek or Crack Magazine. Numerous prominent Americans suffer from this debilitating disease, including the guy who played Rodge on 'What's Happening' and tennis great Pete Sampras." "Pete Sampras has low grade voice immodulation. He is a poster child for voice immodulation awareness and proof that even the voice immodulated can contribute to a society filled with prejudice people." "Imagine being at a high school dance, singing along with everyone else 'and a little bit softer now, and a little bit softer now, and a little bit softer now.' Or how about sitting in the privacy of your church confessional and whispering to your priest, 'I've had impure thoughts about that hippy puppet in the Muppet Show Band.' Or looking into a woman's eyes and gently murmuring to her, 'I want to touch you, I want to touch you.'" "This disease affects either either 700 or 6 people each year and is apparently caused by a late birth and exposure to gold dust." Please keep in mind that all of this information comes from SNL skits featuring Jacob Silj and has no real bearing on those who truly suffer from Voice Immodulation Syndrome.