1. (n) A period after quitting masturbation/porn addiction when libido is severely decreased, orgasms are hard to reach and erectile dysfunction is observed in men. Often anxiety-inducing and a common reason to fall back into habitual porn consumption (as a "test" to see if the body still responds). Total duration can vary from a couple of days to over a month; however, they typically go away with time.

2. (v) To experience a flatline.
1. Curses! I just got a booty call from Ann, but I'm in the middle of a flatline, what if I can't perform?

2. "Why didn't you come over to my apartment last night?" "I'd have loved to, but I'm trying to abstain from sexual stimulation and now I'm flatlining." "What, and your fingers fell of as well?"
by willmst July 27, 2014
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1. dead(from the flat line on the heart monitor of the patient when there is no heart activity, meaning that they have died or their heart has stopped)

2. to die
Don't let him flatline now.
by The Return of Light Joker February 4, 2009
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verb: to "kill" someone - literally or figuratively
"if you ever bring up my ex's name around my current squeeze again.....so help me dude, I WILL flatline you!"

"I heard one of the perps got flatlined by the cops at that liquor store robbery last night."
by Hipster November 18, 2006
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brain dead, stupid , celebrally challenged, Stems from the flat line response of a dead person from ECG machine.
by Socrates September 15, 2003
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A monotonous, expressionless person, lacking any enthusiasm or emotion. The term comes from hospital lingo, where a patient is said to flatline when a continuous straight line is displayed on their heart monitor, indicating death.
"...as excited as that flatline can get. I had to remind him twice to keep breathing."
by Der Golem February 7, 2010
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Commonly observed amongst youth in an intensive educational programme, such as the IB. The word flatline is used to indicate someone whose brain has (almost) ceased to function. Characteristic behaviour amongst individuals flatlining involve laughing at anything in sight, at each other, or at things that when viewed in retrospect, aren't funny in the least. Flatlining is believed to be the brains natural way of relieving stress on the body after having to actually think for an extended period of time.

Flatlining, when used in a broader sense, can be used to describe someone who is behaving abnormally, though the reason for which, must always be related to the stress and induced low blood sugar levels created by a day of intense learning and having to listen to lecturers repeat themselves like a group of chimpanzees mundanely bantering on about the global banana economy.
A group of high school graduates flatline on a Friday afternoon, after a double.
by Johnathan Spruce February 9, 2008
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