An astounding ability some people possess that makes them seemingly invulnerable to virtually anything thrown at them.

An important side note: invulnerability only lasts so long as the sufferer of AHS does not need to be around, is somehow expendable, or is otherwise unimportant. They can do anything until it really matters.

Famous sufferers of AHS are: the GOP, Micheal Jordan's career, Any transvestsite dates, And veritably any protagonist in any action movie made in any date of modern history.

This can be easily applied to any every-day scenario, though is usually left to more unbelievable acts.
Jerry: Man, I went driving with Skippy the other night, and he sparked a bowl right at a stoplight!

Chris: you get caught?

Jerry: No, even though a cop pulled up right behind us! he's, got, like Action Hero Syndrome, man!

or

Larry: Wow, seriously? He got arrested for smoking weed?

Nick: Yeah. He decided that it was a smart idea to light up right in front of the police station.

Larry: How is it that the one time he gets caught, we're waiting on the porch of his house to let us in for the party? It's raining!

Nick: I don't know what to say, man, he's got AHS.
by F1g_N3wton June 5, 2009
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A deep desire to be looked up to as an elite crime fighter but reality teaches them how criminals are far more intelligent then they and their emotional level drops from glee to anger. So a new tactic emerges to keep their dream alive by concluding "I may not be smart enough to catch the real criminals, but at least I can take it out on someone I think deserves it." Hence the hero emerges and an ill-fated regular Joe goes to prison.
Airport Security has not caught one terrorist but plenty of innocent people have been effected by Hero Complex Syndrome" by harrassing innocent people who just want to get on the plane. When their patience is exhausted from witnessing this incredible security force who hasn't caught one terrorist, they become irate, and off to jail they go. Of course this would never have happened if security did their jobs in the background leaving honost people alone.
by Tre Robynson July 28, 2011
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The tendency of many macho guys to brush off pain from serious injuries in day-to-day life, while behaving like complete blubbering weenies when receiving routine medical care. This allows them to appear to have a (manly) high pain threshold, and yet still get copious sympathy from loved ones at the hospital.
Jenna's husband didn't flinch when he sliced his hand open while renovating their kitchen. But he sobbed inconsolably when they put in an IV at the ER. Jenna coddled him and yelled at the nurse, but it was a clear case of Action Hero Pain Syndrome.
by Sir Elroy May 11, 2011
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Guitar Hero hand syndrome is what happens when you play guitar hero for a very long time (5+ years) and whenever a guitar solo or any music that you can follow along to you start playing air guitar and it really does not make you look cool it makes you look more like a poser
Person 1: Man i think i been playing Guitar Hero for to long i think i have Guitar Hero Hand Syndrome *starts playing air guitar*

Person 2: Dude stop playing that silly game and start playing real guitar
by MidnightStar Sparks September 19, 2011
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A hero syndrome is a syndrome that makes the person who has it act like a hero. They are desperately trying their best to help others, and when they fail they feel guilty and it can even lead to suicidal thoughts.
I shouldn’t vent to this person if there is no solution to my problem, they have Hero Syndrome.
by DakiKumiiii August 13, 2021
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When someone has very strong convictions about bad things that are happening so far away that they can't possibly do anything about it, yet do nothing about bad things that are close enough to do something about.
This guy at the coffee shop just talked to me for 20 minutes, unsolicited, about how he could fix the problems at North America's southern border if only he was on the ground there. I think he has helpless hero syndrome
by GriffMasterFresh April 8, 2021
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