noun. A person or company who is persistent in sniffing out, suing for, and demanding immediate ceases of unauthorized use of their intellectual property.
"I posted an episode of South Park on Youtube, and Viacom made them take it off. Man, Viacom are copyright nazi's."

"Everyone knows that Lars Ulrich is a copyright nazi.
by Lbs. January 8, 2009
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20th Century Fox or (not as much these days) Viacom. They won't allow anything that's theirs on YouTube unless it's something official or poor quality.
Want to know the reason why there are no montage parodies of shows like Family Guy?

Blame the copyright nazis at Fox!
by Choof Koof June 16, 2015
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