brain dead

Related to brain dead: coma

brain dead

1. Literally, lacking brain activity, as after a brain injury. After the car accident, Kendra was brain dead. Despite the surgeon's best efforts, the patient was brain dead.
2. slang So mentally exhausted or lacking focus that one does something poorly and/or makes easily avoidable mistakes. Did I just say that two plus two equals five? Wow, I'm really brain dead today.
See also: brain, dead
Farlex Dictionary of Idioms.

brain-dead

mod. stupid. I don’t know why he’s so dull. He’s seems brain-dead half the time.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • brain-dead
  • be brain dead
  • have a stroke
  • BB brain
  • get brain
  • have (one's) brain on a leash
  • have brain on a leash
  • have one’s brain on a leash
  • brain box
  • feather brain
References in periodicals archive
"Brain dead" donors are continuously monitored and specific physiological targets are set--a "brain dead" should exhibit a heart rate of 60-120/min, systolic blood pressure of 100-160 mmHg, and an urine output of 50-100 ml/hr (11).
"It is about gifting life, as a brain dead person's organs die within hours of life support being switched off.
It is the first case in which a donor under 6 years old has been declared brain dead since the revised organ transplant law took effect in July 2010 to cover children under age 15, requiring tougher brain-death criteria for those under 6.
And if you're proclaimed brain dead, then you have lost all your constitutional rights, and they can turn the ventilator off forever, or they can keep it going, and there's no time limit.
This does not comport with the overwhelming amount of expert medical opinion that Tara was brain dead for an extraordinary period of time.
The Saudi centre will present cash rewards to relatives of donors and clinically brain dead patients.
Last night friend and fellow Chelsea fanatic David Mellor said the peer was "to all intents and purposes brain dead".
Gupta, we should explain again, in your--medically, is a brain dead person dead?
Can Myfanwy King (Viewpoints, September 6) produce qualifications to enable her to say that 'white van men' are brain dead? No, never mind.
Terri is not "brain dead," as headlines and news stories describe her.
BRITISH bomb victim Graham Carter today faced fresh heartache -after learning that his fiancee was brain dead.
A drop in donors as a result of the growing debate about the use of anaesthetic when removing organs of 'brain dead' people would be 'a tragedy', the Department of Health said yesterday.
On Monday, Kyorin doctors determined that the woman was clinically brain dead, and informed the Organ Transplant Network and her family later that day.
The detainee had been arrested and transported to the county detention center and the following day was declared brain dead. During his booking the detainee was acting irrationally, his speech was slurred, and he kept repeating in an intoxicated manner "I can't believe this is all over a traffic ticket." He was then taken to a cell and strip searched, but at the conclusion of the search attempted to crawl out of the cell and a struggle ensued.
The mother, who was 30, was certified as brain dead shortly after being admitted with a brain haemorrhage.