Sentence:  So when I was done, and the fishing was as good as the start, I cut a long "staddle," with a bush at the top, and I just went for that school of trout. I <WSD>chevied</WSD>, harried and scattered them, up stream and down, until I could not see a fish. 
Meaning of the word marked with <WSD> tags:  To vex or harass with petty attacks.