Coo Coo For Cocoa Puffs Edit Meaning

1.

a strictly medical term, used to describe a patient or person that has delved into a realm of irrational, illogical and/or crazy thought processes; Affected with madness; insane to an exceeding degree characterized by weakness or feebleness; decrepit; broken; falling to decay; shaky; unsafe; foolish

See that guy trying to put that square peg into that round hole? I think he's gone coo coo for cocoa puffs!