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What does IDK stand for?

IDK stands for I Didn't Know

This definition appears very frequently and is found in the following Acronym Finder categories:

  • Slang/chat, popular culture

See other definitions of IDK

Other Resources:
We have 18 other meanings of IDK in our Acronym Attic

Samples in periodicals archive:

Byline: DEREK McGOVERN; JOHN SHAW I PICKED up My Story by Dannii Minogue yesterday and I was stunned - I didn't know she knew anything about my story.