Someone who beats or defeats others, especially in a decisive or overwhelming way.
From 'drub' (to beat) plus the agent suffix '-er' (one who does). This creates a noun for 'one who drubs.'
A 'drubber' is the person who humiliates you in competition—and interestingly, in sports psychology, being a 'good drubber' (winning without cruelty) is actually considered a sign of sportsmanship!
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