1. flatline - Noun
2. flatline - Verb
An unchanging state, as indicated in a graph of a variable over time.
Asystole; the absence of heart contractions or brain waves.
The disappearance of the rhythmic peaks displayed on a heart monitor.
The disappearance of brain waves on an electroencephalogram.
(intransitive, of the heart) To stop beating.
(intransitive, by extension) To die.
(transitive, slang) To kill.
To stay at the same level, without development; or, to fall.
Source: en.wiktionary.orgIf you don't have a mountain, build one and then climb it. And after you climb it, build another one; otherwise you start to flatline in your life. Sylvester Stallone
; Dixie Flatline : A famous computer hacker named McCoy Pauley, who earned his nickname by surviving three " flat-lines " while trying to crack an AI. Source: Internet
Cardiac arrest A rhythm strip showing a couple beats of normal sinus rhythm followed by an atrial beat and asystole ("flatline"). Source: Internet
Contrary to popular media's use, a defibrillator cannot and should not be used for asystole (a "flatline") as it has been shown to be ineffective in restoring a rhythm. Source: Internet
Meanwhile, Armitage assigns them their first job: they must steal a ROM module that contains the saved consciousness of one of Case's mentors, legendary cyber-cowboy McCoy Pauley, nicknamed "Dixie Flatline." Source: Internet
But then we are in for "a flatline, with zero to 2 percent GDP growth until the damage is assessed and the debt dominoes start to clear." Source: Internet