Top Definition
An exclamation made when Facebook fails to load correctly or introduces new and unnecessary additions to the News Feed.
After logging onto Facebook, John expected to see his friend's status updates. Instead, his News Feed was clogged with answered questions from the new "questions" app.

"What the Zuck?!?" John screamed. He then proceeded to throw his computer out the window.
by medicalert April 27, 2011
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