IDK means:
I-I
D-Don't
K-Know
The I stands for I, the D stands for Don't, the K stands for K. It is used when someone is unaware about something, and they're to lazy to type out "I don't know."
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1 up, 3y
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[deleted] M
0 ups, 3y,
1 reply
it means "i dig ketchup"
"Hey jon… what do u want on ur burger?"
"i want ketchup! idk as you know!"