the meaning "I don't know" but in letters
Lucas:hey Mark, do you know anwser 10? I'm stuck on it.
Mark:idk man, ask Marcus he's the smartest in our class
Idk I Don't Know.
The I Is For I And D Is For Don't.
So, The K Means Know.
Here Is An Example
Jeff: Do You Wanna Play Another Game?
Nick: Idk
Short for I don't know like BRB be right back
Jo: what is the answer for number 2?
Bob: IDK BRB going to the loo.
Stupid person #1: what does IDK stand for
Stupid person #2: i don't know