The term “emergency blow” comes from submarines, where in an emergency all the ballast tanks are blown empty with high-pressure air to force the boat to the surface in the shortest possible time. It’s normally not done on the surface, but thanks to Jalopnik’s Foxtrot Alpha blog we get to see it. This is the Sturgeon class submarine USS L. Mendel Rivers conducting an emergency blow test in harbor. The action starts at about 1m. 32sec. into the clip.
There are more video clips of emergency and high-speed surfacing maneuvers at the link, including a couple of Soviet submarines. Interesting viewing.