spy sappin mah sentry 

Spy sappin mah sentry is a line spoken by the engineer in Team Fortress 2 when an enemy spy sapps his sentry gun.

*spy sapps sentry*

Engineer: Spy sappin mah sentry!

spy sappin mah sentry by Tairuu August 31, 2016

SENTRY DOWN 

Originating from Team Fortress 2, when the Engineer will shout "SENTRY DOWN!" if his sentry is destroyed.

Used on the internet to mean that the defenses are down; used jokingly in a flame war.

A: Umm...well... you're stupid!
B: SENTRY DOWN!

SENTRY DOWN by scy1192 April 28, 2008

sentry buster 

Really fucking annoying bob-omb expies that run towards a Sentry and explode.

Alert! A sentry buster has entered the area!
*BEEP BEEP BEEP BEEP BEEP*
Aw, hell.

*BEEPBEEBBEEBEBEEBE-BOOM*

sentry buster by An Angry Engineer January 13, 2013

mini sentry 

The spawn of Satan Himself. Even scunts and W+M1 pyros don't deserve to stare down the barrel of one of those horrors.

The much hated lime green tossle cap wearing scunt was hated by everyone because he was edgy, spammed ( ͡° ͜ʖ ͡°) binds in the chat, and reked everyone who tried to fight him, but even him didn't deserve to get mowed down by a mini sentry.

mini sentry by TheHunterOfPussy October 30, 2017

Spah sappin mah sentry! 

A line engineer from tf2 says when a spy saps his sentry

"Spah sappin mah sentry!"
Then the spy backstabs the engineer
"ÆAAAAUGH"

Spah sappin mah sentry! by Sentry Gaming November 4, 2020

Sentry nest 

A Sentry nest is a term used in the multiplayer online game: Team Fortress 2. The term refers to an area in which one or more players of the the Engineer class has set up their buildings, (primarily) the Sentry gun, Dispenser, and Teleporter in a way that it acts like a small base for their team to retreat to when they are in trouble. It is common behavior for the Engineer to "turtle" in the nest and not stray away from his buildings. This behavior can stem from a fear of enemies of the Spy class to place an Electro-Sapper on his buildings. These nests are commonly set up behind cover, with a corner for the Engineer to keep his back against to avoid being backstabbed by a Spy.

Player on Red Team: "Watch out, the Blu team has set up a Sentry nest over there."

Sentry nest by WingedBluJ June 28, 2017

12th General Order of a Sentry 

The 11 general orders refers to the Marine Corps guidlines for keeping watch during fire watch. Now only the Marine Corp has 11 however the Marines made one adition the 12th general order which is "To walk my post from flank to flank and take no shit from any rank"

so if a corporal is on guard and is instructed to let no one in for any reason and an officer demands entrance this is where the 12th General order of a Sentry comes into play, the corporal must tell the officer to leave and use force if neccessary, although under normal circumstances such an act would get the corporal demoted

12th General Order of a Sentry by Elijah Groenewold May 13, 2006