The (New) Whole 9 Yards
Posted by Bob Vaughan on September 18, 2000
In Reply to: The (New) Whole 9 Yards posted by Barney on February 29, 2000
Well, I'm not sure how reliable the source is, (Discovery Channel), but the phrase supposedly refers to the length of the ammunition belt of the 50 caliber machine guns used on the WW1 planes. If you shot the whole belt you gave'em "the whole nine yards".