Squidbrains is an insult used to describe anyone that appears to be incompetent or fails to respond to issues in a way that would be expected based on their position or status.
This word was invented by kanye west who used it while insulting the staff at Bonnaroo in an angry letter.
Kanye west: I HAVE A FUCKING LIGHT SHOW DUMB ASS, IT'S NOT CALLED GLOW IN THE DARK FOR NO REASON SQUID BRAINS!
Reasonable person: Wow, Kanye sure went all out with the caps on that angry blog letter! One might even suggest that he is squidbrains.