A while back, Rich Pierce posted some pix of his gouges for stabbing. Made of thin steel, bent into a 'U' shape, and affixed to a handle. Very clever.
A gouge that you use for wood removal is sharpened differently than one for stabbing in the nose of a lock.
For a gouge for heavy wood removal, and using a mallet across the grain, the INSIDE of the gouge should be stoned flat, and a rounded bevel stone on the exterior of the gouge. This rounded bevel gives you control of the depth of cut as you tap along, by raising or lowering the handle.
For stabbing the nose of a lock, or stabbing in carving, the bevel should be ground at a fine angle, so you don't displace too much wood when driving straight down into the stock. This low angle makes it unsuitable for other carving uses.