Shorthand for I don’t know, IDK is used in chat based communications anytime the person does not know the answer to something that is being asked. Below is an example of how this could be used in chat.

User1: Do you know his name?User2: IDK

Chat terms

  • Introduction to Computer Hope.
  • How can I ask Computer Hope a question?
  • Where can I ask a question on the Internet?
  • How to find information on the Internet.