He was lucky enoough to win the playoff tickets.
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Q: Why do you use 'off' in 'playoff'? Is 'off' used as 'end'?
"Playoff" is something of a slang term that has developed in the world of sports and other competitions.
http://www.google.com/search?q=playoff+definition&oq=playoff+definition&aqs=chrome..69i57.3587j0j7&sourceid=chrome&es_sm=119&ie=UTF-8