IKILYDIBAFTMS Is an acronym for "I know I've
let you down, I've been a fool to myself".
It often means the person that is saying this regret something they've done and are
emotionally unstable. You might hear it from your
mentally ill friend after they treated you bad or ignored you.
-Dad!
How could you abandon me, ignore me and abuse me in
every single way possible!
-Ikilydibaftms, now get in
the robot son.
-Okay dad, I'd do anything to make you proud!