Master Chief

Short for Master Chief Petty Officer. The Master Chief Petty Officer is the ninth, and highest, enlisted rank in the U.S. Navy, just above Senior Chief Petty Officer, and is a non-commissioned officer. They are referred to as Master Chief in most circumstances.

Advancement to Master Chief Petty Officer is similar to that of Chief Petty Officer and Senior Chief Petty Officer. It carries requirements of time in service, superior evaluation scores, specialty examinations, and peer review. A Senior Chief Petty Officer can only advance if the existing master chiefs approve.

A Master Chief Petty Officer is purely administrative and is usually tied closely with the Commanding Officer, except possibly when the command is very large (e.g. an aircraft carrier). Their uniform reflects this administrative duty; becoming similar to that of an officer, albeit with different insignia than an officer.

The master chief came down here and busted those guys asses for being drunk on board ship.

by jt October 17, 2004

masterbacin'

what you do when looking at bacon porn.

Last night, when I was looking at bacon porn, I started masterbacin'

by cjsnickers April 23, 2009

Master Sesh

When a person or group of people smoke(s) a massive amount of marijuana in one sitting.

Stoner 1: "Homie, my friend and I had a master sesh last night. We smoked a quad between the two of us."

by JDRstoned August 17, 2009

masterbatum

when someone offers you a choice between two things and you decline both and decide to masterbate instead

joey:listen man, you can either come with me to the grocery store or go make your own dinner, your choice.

penisface92: fuck you man, im about turn that ultimatum into a masterbatum.

joey:fine asshole, do what you want, youre never gonna get a girlfriend.

by penisface92 September 17, 2011

master b8

When an advertisement for a porn site pops up on your screen.

I tried to get some stuff done on the Internet, but some master b8 popped up and I spent the next the next thirty minutes in the bathroom.

by The All-Seeing Pie July 30, 2016

Master Salty

a female who scares people when disagreed with. The people she cares most about are the ones she treats the worst. Has difficulty expressing emotion constructively when aggravated. Be careful the salt is contagious.

Master salty got upset today when her boyfriend didn't have enough gas to take her to get her nails done. Master salty felt satisfaction while emotionally crippling her loved one.

by Insatiable me September 18, 2018

Masterbaster

Someone who is really good at using a turkey baster

Give me that turkey baster

Here, woah bro your a masterbaster

by CodeBlueCodeBlue November 8, 2019