A series of comic books that have existed in one incarnation or another from the 60s to the present.
Founding members included Batman, Superman, Wonder Woman, Flash, Green Lantern, Martian Manhunter, and Aquaman, though DC likes to re-write history and past founders have been changed to exclude Batman, Superman, and Wonder Woman, including Black Canary, Moon Maiden and Triumph instead.
There have been three main series of Justice League of America comics with many spinoffs, including international branches, rotating teams, and even a black ops league. The Justice League formula tends to be this: Popular heroes team up in the beginning, there's some internal conflict in the team, and the team separates and reconstructs with some new obscure members. As the comic goes on, the reconstructions occur more and more often, until finally the comic is full of people you don't know and it gets canned and restarted quickly.
There is also a Justice League Unlimited comic book, proving that it is possible to sell a comic book, that is based on a show, that is based on a comic book.
LITTLE KID: "Hey, is that comic book Justice League Unlimited like on Cartoon Network?"
OLDER DUDE: "No way, it's good old Justice League International with Blue Beetle and Guy Gardner."
LITTLE KID: "Blue who?"
by DarthPez September 8, 2005
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Basically a better version of the Superfriends. Composed of Superman, Batman, Wonder Woman, The Flash, Green Lanturn, and The Martian Manhunter, they defend the earth from all kinds of evil people like Lex Luthor.Ever since the end of the Superfriends, they dropped The Wonder Twins, their monkey, and Aquaman(though he did make an appearance at one point and the whole episode revolved around a new cooler him with a hook hand).Unfortunatly, Hawkgirl's leave spawned Justice League Unlimited, which blows monkey balls because GL is bald, they have way too many heroes,Lex is a good guy, and Martian Manhunter does nothing.
Justice League is much cooler without the Wonder Twins.
by Heroic Ling Ling November 13, 2004
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The Justice League, formerly also called the Justice League of America or JLA, is a fictional superhero team that appears in comic books published by DC Comics. First appearing in The Brave and the Bold #28 (February/March 1960), the Justice League originally featured Superman, Batman, Wonder Woman, Flash, Green Lantern, Aquaman, and the Martian Manhunter. The team roster has been rotated throughout the years with characters such as Green Arrow, Captain Atom, Captain Marvel, Black Canary, the Atom, Hawkman, Elongated Man, Red Tornado, Firestorm, Zatanna, Hawkgirl, Cyborg, Vixen, and dozens of others. Sidekicks like Supergirl, Robin, Aquagirl, and Speedy tend to support the main hero or heroine.

The team received its own comic book title in October 1960, when the first issue was published. It would continue to #261 in April 1987, which was the final issue. Throughout the years, various incarnations or subsections of the team have operated as Justice League America, Justice League Dark, Justice League Europe, Justice League International, Justice League Task Force, Justice League Elite, and Extreme Justice.
The Justice League of America is the DC Universe's most powerful and premier superhero team, a strike force comprised of the world's mightiest heroes. They act as stalwart protectors of sentient life; Earth's first line of defense against terrestrial, extra-terrestrial, inter-dimensional and supernatural threats. There have been many members over the years and several incarnations of the team, but the original group was founded by Aquaman, Batman, The Flash, Green Lantern, Martian Manhunter, Superman and Wonder Woman. The Justice League of America was created by Gardner Fox during the Silver Age as a spiritual successor to the Golden Age's Justice Society of America, first appearing in Brave and the Bold #28. (1960)
by The Centurion October 18, 2014
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A group of boys around school freeing the fields of injustice and crime. They achieve this by literally beating the shit out of innocent people, terrorising the school population into obedience. They often attack using the "Gangfuck" method, in which they circle the lone victim, wrestle him to the floor, and kick the shit out of.

Often suspended from school for 'GBH' and assault. A Justice League has no clear leader, just a lust for violence and fear.
Billbo-"Holy shit did you see that guy left on floor covered in blood?"
David-"Oh shit the Justice League are back in school"
by WillyWonkle May 14, 2011
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This refers to a group of guys from Bethlehem, PA. They are all athletes and awesome in their own respect. They represent the classic comic book heroes and have unique nicknames that characterize their personalities. The group is comprised of Princess Man, Gay Man, CM Man, Unicorn Man, DUFF Man, and PK MAn. As a group, they are undefeatable, and as individuals, they run the show.
Guy 1: Hey who is that?
Guy 2: Oh thats the Justice League?
Guy 1: Awesome, I wish I was in a group as cool as them
Guy 2: We can make a group. We'll call it the Mario Brothers
Guy 1: ............ (shake head) no
by Halvinator January 3, 2010
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tha combinations of atleas 3 ov the 7 superhero sex moves, of superman, green lantern, flash, hawk girl, batman, wonder woman and j'onn. (correct definitions by Mutha WAT)
guy1: yesterday i gav dis girl a full Justice League with a superman, spiderman, AND a batman!!
guy2: wtf, spidermans a marvel hero and batman can onli b done with men, u poser-homo!
(kills guy 1)
by Mutha WAT July 7, 2004
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a bunch of idiots who think they are cool because they all have 99 stats and no life.
Hey im in the justice league, can i have a life please?
by thsucksbawls July 11, 2008
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