acronym for "I don't know". Used mainly in computer-based conversation (instant messaging, email, text messaging, etc.) Person A: What time does her flight arrive? Person B:IDK. Person A: What's his name? <points to stranger>
GTK Definitions include: acronym for "good to know". IDEK Definitions include: acronym for "I don't even know". IDK Definitions include: acronym for "I don't know". IKR Definitions include: acronym for "I know, right?" in the know ...