come unhinged
To become angered or crazy; to lose control of one's senses or sanity.
Dad came unhinged when he saw the report card with such bad grades.
adj
Mentally ill or unstable; deranged; insane.
The revolution of 1830 and the discomforts of his private life so preyed upon his mind that his reason became unhinged, and he had to be removed to an asylum near Caen, where he died in 1834.
After the screening, a large crowd filled the street outside the theater, playing spot-the-sublebrity with some of the film's prime characters, including Nirvana photographer Alice Wheeler and Love's estranged (and notoriously unhinged) father.
adj
Not furnished with a hinge.
an unhinged door
Not having ever been mounted using a stamp hinge.