Similar to chain smoking. It is when you are addicted to a television series and watch multiple consecutive episodes, starting the next episode as soon as the previous one finishes.
"I'm so tired, I stayed up til 4 am watching the fifth season of 24."

"Dude you need to lay off the chain watching."
by littleninja March 28, 2010
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Binge watching with a twist. Emphasis on finishing multiple seasons or shows.
I chain watched all of Naruto and then got halfway through Breaking Bad. My chain watching is getting bad.
by Nachmanite May 8, 2021
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