A jerkass who tries really hard and cocky in gym class to look important or cool
"I'm the greatest quaterback ever!"

"What a gym hero"
"Jerkass"
"Wow your cool now"
by Jack Daniels and trashman February 14, 2005
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A gym hero

is the guy who is a member of a gym and

NOT an gym employee who always runs up to new members and offers unsolicited advice.
They will approach men and women claiming that they are performing an exercise incorrectly and/or with bad form.
They also offer advice on dieting and cardio as well.
Many are doing this to promote their personal training side hustle and in most cases they have never competed in any Powerlifting and/or Bodybuilding competitions what so ever.

This is an epidemic in any medium or large gym all over the world.
Gym Hero:Excuse me, you are doing that exercise wrong.
Female member: I am?
Gym Hero: Yes, let me show you how its done.
Femamle member: OK?
Gym hero: Here is my number is you need any further assistance.
by atlxtreme September 28, 2018
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That person next to you at the gym that is so over the top extra. Can’t just do a normal exercise but instead has to play the “hero” so that everyone else in class knows they are the best. Signs you are a “gym hero”: 1. You always pull the heaviest weights and then throw them on the ground so people hear the thud, 2. You incorporated push-up in with every standard exercises as a way to show off and 3. You do something really abnormal like run at the fasters speeds at the highest inclines on the treadmill to attract attention and praise.

Studies have shown that calling out this behavior to said “gym hero” only amplifies their desire to strut their stuff. Authorities on the matter suggest you try your best to ignore it.
Did you see so-and-so add a clap to their pushups today, (heavy eye roll) who does he think he is, some sort of gym-hero?
by Motrukn March 1, 2021
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The guy or group of guys in high school/junior high that always kicked everyone's asses in games, and basically made you feel even more shitty about your own suckiness.
Dodgeball was never fun, because everyone knew the gym class heros would pwn all over our asses.
by xHilikus September 20, 2006
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An amazingly kickass rap/punk band that has extreme talent in writing songs. Best songs include Taxi Driver, Papercuts, and Makeout Club.
At the drive-in watching soft porn
And you can tell
By the trail of the dead
That there was something in the popcorn
by gymclasshero August 27, 2005
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Groundbreaking rock/hip-hop out of upstate New York. Works under the Fueled by Ramen record label and is known for their original lyrics, and their ability to make beats with real instruments instead of mixers and canned beats. Released their first LP, The Papercut Chronicles in February and i highly reccomend it.
"She says she loves me but, she comes and goes when she pleases, when the door shuts, it's like another papercut. Now im stuck with a hand full of band-aids, till she comes back around like them ceiling fan blades. She claims she loves me but, she cuts me into pieces, and when im sewed up, here comes another papercut."
by gch fan August 10, 2005
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Person or people that take gym really seriously and go all out. They often make themselves look like retards and are totally oblivious to the fact that everyone hates them and thinks they should die.
The gym class hero looked like a d bag when he broke a girls leg playing volleyball.
by Malcolm XY October 27, 2008
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