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Master Chief Syndrome 

An often overused antic in modern culture where one man (or small group) face incredibly overwhelming odds and win. Generally only met with "dude" and "sick" from bro's and frat boys, and met with chargin from people with brains.
"Dude Master Chief just jumped out of a space ship and blew up that other ship. Then he single handedly killed 4.5 million aliens with his bare hands... sick."

"That end fight in Saving Private Ryan was such an obvious case of Master Chief Syndrome I'm suprised anyone can keep a straight face."
Master Chief Syndrome by Jackel_623 February 1, 2010

Navy SEAL master chief

the most badass mother fucker on the earth. capable of killing an entire army of terrorist assholes just with his thoughts of how he would kill them.
: Did you hear about that Navy SEAL master chief?

: No, what happened?

: Al Qaeda died for him because he needed a holiday.

Master Chief 

A bad-ass soldier from the video game "Halo: Combat Evolved". Usually seen in green MJOLNIR Mark-V Armor. Synonymous with 1337.
The Master Chief can run at up to 55 kilometers per hour. He is the embodiment of 1337ness.
Master Chief by Araquiel May 28, 2004

Master Chief 

The protagonist from the Halo Series by Bungie. He could totally kick you ass. And you know it.
Master Chief kicked the Flood's ASS in Halo 1, 2, and 3.
Master Chief by Dayonic November 25, 2007

Master Chief that Ho 

This occurs when you take a small ball i.e. tennis ball, baseball, etc. and then you knut all over it, effectively creating a sticky plasma grenade. then you throw it at a bitch
The bitch wasn't putting out so i decided to master chief that ho with my tennis ball
Master Chief that Ho by McLovin1174 January 16, 2008

master chief 

Master Chief is the name of the rank that John is, his spartan number is 117. He is the playable character in both Halo: Combat Evolved and Halo 2. Hes a badass character, hes so badass that he just has to walk on screen and you can feel the badassness radiating from his badass aura of badassness. He doesn't need to walk on screen and snap some necks or crack some skulls to look like a badass, he just walks on screen. Okay, enough of my undying love for the most badass video game character.
master chief by Vorhees July 19, 2006
More from Urban Dictionary

pajama casual 

Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.
We have a Zoom meeting in a few minutes and I’ll probably go pajama casual.
pajama casual by jrod-knows March 31, 2020
Word of the Day on October 14, 2026

funflation 

The recent boom in consumer spending on entertainment and experiences with a high demand running up the cost of enjoying of those experiences.
I’m trying to go to this Taylor Swift concert but the funflation has made it so impossible for me to afford tickets.
funflation by Dfree523 November 17, 2023
Word of the Day on October 13, 2026
A US deep south term for an alligator. Usually used in the Cajun dialect.
Take the big pirogue, I saw a huge swamp dog out there earlier.
swamp dog by Crystal Ambrose May 22, 2006
Word of the Day on October 12, 2026

Throat Sweats 

The feeling and build up in your mouth/throat of saliva that sometimes accompanies nausea.
Oh man those burritos gave me the throat sweats, I hope I don’t have food poisoning.
Throat Sweats by TacoFings420 April 23, 2024
Word of the Day on October 11, 2026
Being ignored by someone when making a statement or asking a question. Also known as blanked and turfed.
Person 1: Did u watch ** last nite?
Person 2:......
Person 3: O no u got aired!
aired by Pietro February 9, 2005
Word of the Day on October 10, 2026

piddlefart

Instead of doing my homework, I decided to piddlefart around for two hours.
piddlefart by Rene April 25, 2005
Word of the Day on October 9, 2026
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