hardboot
noun
hard·boot ˈhärd-ˌbüt 
: an especially small-time horseman
Example Sentences
Recent Examples on the Web To many of us who are habitués of the track, these guys are the very soul of the thing, but one of the central conflicts at the races will always be between the hardboots and the hustlers. 
Max Watman, WSJ, 25 May 2018
Max Watman, WSJ, 25 May 2018 Word History
First Known Use
1922, in the meaning defined above
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