Acronyms dictionary IDEK What does IDEK mean? IDEK is an acronym used in texting and social media that means I don't even know. It expresses sheer puzzlement over something that seems inexplicable. Related words: I know! the more you know Examples of IDEK I hear laurel every time #idek #laureloryanny @drodropz, May, 2018 Love how people use other to the point they don’t know if they can even trust them. #feelbetrayed #blues #used #idek #why #wishtherewasabetterway #twitch #psn #pc #steam @iitsPantherz, May, 2018 So since babies are in the womb for 9 months, shouldn't they be 9 months old when its born? 🤔 #Idek @megann_bailey21, May, 2017 SEE MORE EXAMPLES Who uses IDEK? me.me Just Added 4th of July, boogaloo, shelfie, ACAB, yeet Note This is not meant to be a formal definition of IDEK like most terms we define on Dictionary.com, but is rather an informal word summary that hopefully touches upon the key aspects of the meaning and usage of IDEK that will help our users expand their word mastery.