An often overused antic in modern culture where oneman (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."
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 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.
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.