Watching several episodes of a TV show in a row, usually from a DVD box set. This can be done over several evenings, or a marathon weekend.
I missed the first three seasons of Mad Men, so I spent the past two weekends powerdisking all the episodes in order to be up to date for the premiere of season four later this month.
by Chris.G July 6, 2010
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Watching not just multiple episodes of the same show in a row, but the ENTIRE SERIES in a very short period of time. This is especially done before the show's finale, in order to catch up quickly before the conclusion.
Dude #1: "Dude, are you ready for the season finale of LOST?"

Dude #2: "No, I've never watched that show."

Dude #1: "Oh man, you gotta catch up! This will require some ultimate powerdisking!!"
by JayGayle August 10, 2010
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Watching multiple episodes of a TV show in a row on the internet. This can take place over several days or all at once.
I never saw the TV show LOST, but now that all of the episodes are on Hulu I spent all last week digital powerdisking the first season.
by Remilo33 August 14, 2010
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