be brain dead

(redirected from are brain dead)

be brain dead

1. Literally, to lack 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 To be 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
References in periodicals archive ?
Doctors in Calgary, in an effort to increase the number of organs available for transplant, suggested that, as well as using organs from those who are brain dead, organs should also be harvested from patients who are not yet brain dead, but in whom the heart has stopped beating.
And number two, not all who are brain dead would be suitable as organ donors.