1 definition by 1Sherman
1) the small opening in the volcanic ash clouds that allow airliners to fly through without any chance of danger.
2) the opening at the top of a volcano from which forth spews volcanic ash
2) the opening at the top of a volcano from which forth spews volcanic ash
We were stranded at Heathrow Airport for hours until the airline found some ash hole to fly through.
by 1Sherman April 15, 2010