Sentence:  In milling, a blade with this irregularity in front slope causes the cutter to drag on one side and <WSD>gouge</WSD> on the other. 
Meaning of the word marked with <WSD> tags:  To dig or scoop (something) out with or as if with a gouge; in particular, to use a thumb to push or try to push the eye (of a person) out of its socket.