Legi0n 

One of the many shitty chan sites that no one cares about. It's run by some fat Mexican kid and a former member of the FCTC and is best known for /cwc/ (a board devoted to chris-chan). If you wonder how admins can have their dox posted all over the internet and sill claim to be "Anonymous" or when Chris-chan became relevant again, then you're probably not cool enough to hang with the legi0n crew.

Typical posts include:
What if chris X?
Dig up Patti (chris chan's dead dog)!
U MAD
(USER WAS BANNED FOR THIS POST)
lol i troll u
Furfags suck lol
U MAD
The mods suck
X sucks
U MAD

Person A: Hey, I heard about this site called 'Legi0n' and it sounds pretty hardcore. Should I check it out?
Person B: No don't bother. It's just some bitches trying to get attention through Anonymous.

Legi0n by DrSerbia August 4, 2010

Legion of Boom 

Nickname for the secondary of the 2013 Super Bowl Champion Seattle Seahawks. The Legion of Boom original members were Earl Thomas III, Richard Sherman, Kam Chancellor and Brandon Browner. Newest additions are Walter Thurmond III, Jeremy Lane and Byron Maxwell. Due to the nature of how hard hitting and fast the Seahawks defense is the whole D is starting to take on The Legion of Boom moniker with the national media.

The Seahawks Legion of Boom put a hurting on the Denver Broncos and Peyton Manning in Super Bowl XLVIII to the tune of 43-8.

Legion of Boom by Youmanix February 14, 2014

Hammer Legion Member 

A word filter on the steam forums thats transforms the word "Fanboy" into "Hammer Legion Member" to prevent it being thrown around so much.

Guy1: MW2 will be a great game, stop being such a PC Hammer Legion Member.
Guy2: Suck my balls you consoletards.

Hammer Legion Member by felmcbadbeard November 5, 2009

Legitness 

When your friend nails a sweet scooter trick, it is called legitness

*lands scooter trick*
"That was legitness"

Legitness by Phil0sopher June 4, 2015

Hammer Legion Member 

"Hammer Legion Member" is a synonym for "Fanboy". It was first coined on the Steam User Forums. To prevent the word "fanboy" from being overused, the word filter system for the Forums will turn "Fanboy" or "Fan boy" into "Hammer Legion Member"

See: Fanboy, Consoletard

Guy 1: "I love EA. They're the best company and no one can dispute this."

Guy 2: "Are you insane? Or just a Hammer Legion Member?"

Hammer Legion Member by BiGoDeViN September 29, 2012

The Legion Effect 

In Dead By Daylight, when the survivors see the killer is The Legion, most of them will disconnect immediately.

Person 1: “Dude, I was playing Legion and 3 of the survivors disconnected!”
Person 2: “That’s the legion effect for you, no one likes going against The Legion.”

The Legion Effect by devially October 21, 2022

legitness 

When something is so legit (real, authentic) that the only word that could possibly describe it is "legitness".

"yo dats only $20 a gram"

"for realz??? I gotchu bro, dats straight legitness right there, you the man"

legitness by Homeless Chicken August 27, 2017