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1: M13 is short for Mara Salvatrucha. Many people consider this gang to be the most dangerous gang in the world. It is well known for its extensively violent crimes upon the innocent. The gang first started in El Salvador but has spread to states in the US.

2:M13 - The Hercules Globular Cluster... a cluster of stars in space
1: "Dude I ran into some guy who had 'M13' tatooed on his neck... he said he was gonna kill me"

"Holy shit man, M13 is short for Mara Salvatrucha. You gon die."

2: "Wow man, M13 is such an awesome collection of stars".

I'm 13 years old and what is this? 

Another less funnier variation of the meme I'm 12 years old and what is this?

Said in forums that restricts the registration of people below 13. If you put the original version of the meme, which is: I'm 12 years old and what is this? Mods might think that you're ACTUALLY 12 years old and ban you because they're dumbass pricks, or just have a reason to ban you for the lulz.
Person 1: "I'm 12 years old and what is this?"

Dumbass Mod: "You're 12 years old? This forum is for ages 13 and up! *Bans Person 1*"

Another day:

Person 2: "I'm 12 years old and what is this?"

Dumbass Mod: O rly? I know that's a meme, but you piss me off and I have a reason to ban you. *Bans for the lulz*"

Yet another day:

Person 3: "I'm 13 years old and what is this?"

Dumbass mod: I thought the meme was "I'm 12 years old and what is this." What the fuck is going on?"
m134 by Netscape4.0 May 19, 2016

M134 Minigun

Also known as the "Vulcan" Minigun. The m134 is somewhat of a portable version of the Gatling gun, hence the "Mini" prefix. It shoots around 50 rounds per second through a rotary barrel system. Comparable to a washing machine in that, while it takes a bit of build-up (about 1.5 seconds) once its going, it will clean up quickly (and argueably efficiantly.)
Dude! Check out the guy with the meatgrinder! What is that?

That's an M134 Minigun. Its one mean S.O.B.
M134 Minigun by Sharkman311 December 7, 2009
a TOP SECRET mic check term at Forest Hills Northern invented by Ryan Tietema and Calvin Ruffini and carried on by Jack Ray and Hudson Kemperman after calvin and ryan graduated. There are a few rules for m138s1. They are as follows:

one can only say it when their mic is turned on and being checked by the people at the sound booth. If people want to know what it is you have to act like you don’t know what they’re talking about. They have to figure it out by hearing you say it during mic check and then they have to say it during theirs.
Ryan Tietema: check mic! Check mic! m138s1!
jack ray: ryan what is the thing you say during mic check? what does it mean
ryan tietema: idk what ur talking about

(next mic check)
ryan tietema: check mic! m138s1
jack ray: m138s1, check mic!
(now jack says it every mic check)
m138s1 by Jarackai November 18, 2023
More from Urban Dictionary
EBK stands for "Elite Ball Knowledge." 1 In internet slang, "ball knowledge" originally referred to a deep understanding of football/soccer or basketball, but it has evolved into a broader term for having a highly sophisticated, deep, or niche understanding of any specific topic (such as music, movies, or subcultures).
Person A: "That scene was a direct homage to an unreleased 1982 Japanese indie film."
Person B: "Wow, EBK."
EBK by silwhett November 5, 2026
Word of the Day on November 6, 2026
A seemingly endless debate with a idiot
I don't know man im not ready for yap trap stupidity today which always tries to suck you into it
Yap Trap by WolfieSnack November 4, 2026
Word of the Day on November 5, 2026
Texas is categorized as a swing state in presidential elections, but has voted for Republicans more times than for Democrats in recent history. As such, as demographics change political alignments, some Democrats believe that Texas will vote blue, or Democratic, due to their Hispanic and African American voters, who often align themselves with the Democratic Party's liberal wing.

Blexas has been cited as possible in the upcoming decades, but only if Democrats continue to win the Hispanic vote in bigger margins.
Democrat 1: What is your prediction for the 2024 presidential election?
Democrat 2: Well uh, Blexas!
Democrat 1: You've been saying that since 2008 though.
Blexas by Tritonist June 14, 2021
Word of the Day on November 4, 2026

briefcake 

"Did you check out the briefcake in courtroom C?"
briefcake by Ben Frey April 6, 2006
Word of the Day on November 3, 2026
Brought to public attention by Bob Woodward and Carl Bernstein in the book on the fall of Richard Nixon, All The President’s Men, ratfucker was Nixon’s term for a political operative who sows chaos among opponents; an agent provocateur. It is thought to have originated among campus political rivalries at USC, and seems to have some usage in the US military.
Along with Nixon’s other ratfuckers, Roger Stone caused fights at otherwise peaceful Democratic Party protests to generate a false narrative that the Democrats were violent and dangerous.
Ratfucker by Ricky Ramjet November 2, 2017
Word of the Day on November 2, 2026
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