What (who) is Flatliner - definition

WIKIMEDIA DISAMBIGUATION PAGE

Flat Liner cocktail; Flatliner (disambiguation)

Flatliner

Brain dead,a very stupid,or very disorganized person
YO! 'Flatliner',The RED light means STOP!

flatline

ELECTRICAL TIME SEQUENCE MEASUREMENT THAT SHOWS NO ACTIVITY AND THEREFORE, WHEN REPRESENTED, SHOWS A FLAT LINE INSTEAD OF A MOVING ONE

¦ verb informal (of a person) die.

Derivatives

flatliner noun

Origin

1980s: with ref. to the continuous straight line displayed on a heart monitor which indicates cardiac arrest or death.

go flatline

[Cyberpunk SF, refers to flattening of EEG traces upon brain-death] also "flatlined". 1. To die, terminate, or fail, especially irreversibly. In hacker parlance, this is used of machines only, human death being considered somewhat too serious a matter to employ jargon-jokes about. 2. To go completely quiescent; said of machines undergoing controlled shutdown. "You can suffer file damage if you shut down Unix but power off before the system has gone flatline." 3. Of a video tube, to fail by losing vertical scan, so all one sees is a bright horizontal line bisecting the screen. [Jargon File]

Wikipedia

Flatliner

Flatliner may refer to:

A person whose brain or cardiac activity is measured as a flatline
The Flatliner Band, a country band from Brighton, IL
The Flatliners, a Canadian ska punk rock band
Flat-Liner, Australian haunted heavy-rock band
4-Methylthioamphetamine, a psychoactive drug
Flatliners, a 1990 science fiction psychological horror film directed by Joel Schumacher
Flatliners (2017 film), a 2017 remake of the 1990 film, directed by Niels Arden Oplev
"Flatliner" (song), a song by Cole Swindell and Dierks Bentley
Another name for the Reverse STO, a professional wrestling move
Flatlinerz, a band

https://en.wikipedia.org/wiki/Flatliner

Examples of use of Flatliner

1. TEMPE, Ariz. –– The Heart Attack Grill _ a theme restaurant whose specialties include the Quadruple Bypass Burger and Flatliner Fries, cooked in pure lard _ is making health–care professionals‘ blood pressure rise, and not because of the menu.