Internet culture
IDK
I don't know.
In everyday use
“IDK which account posted the original.”
What to keep in mind
Often used casually in messages; use plain wording if the audience may not know it.
Also searched as: I don't know
Further reading
Original explanation and example by Perspectism. Further reading may cover the wider subject, rather than this exact wording. Edition updated 7 October 2026.
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