The act of perpetually incessant talking at a high volume. Typically exacerbated by the consumption of alcahol, and seemingly uninterupted and endless, thereby causing the victim/listener great distress.
The other night Al wouldn't stop talking. He just kept talking and talking and talking. At no time was there a pause in his speech. I couldn't get a word in edge-wise, and if I tried he would simply raise the volume of his verbal diarea several decibels higher to a level far above the OSHA acute exposure limit requiring hearing protection. I had been derued.