red-out

Loss of consciousness due to blood being forced to the head -- most commonly by negative G forces incurred while flying military aircraft. The vision is clouded in red before consciousness is lost.

The g is used primarily in aerospace fields, where it is a convenient magnitude when discussing the loads on aircraft and spacecraft (and their pilots or passengers). For instance, most civilian aircraft are capable of being stressed to 4.33 g (42.5 m/s²; 139 ft/s²), which is considered a safe value. The g is also used in automotive engineering, mainly in relation to cornering forces and collision analysis.

One often hears the term being applied to the limits that the human body can withstand without losing conciousness, sometimes referred to as "blacking out", or g-loc (loc stands for loss of consciousness). A typical person can handle about 5 g (50 m/s²) before this occurs, but through the combination of special g-suits and efforts to strain muscles —both of which act to force blood back into the brain— modern pilots can typically handle 9 g (90 m/s²) or more.

Resistance to "negative" or upward gees which drive blood to the head, is much less. This limit is typically in the -2 to -3 g (-20 to -30 m/s²) range. The vision goes red and is also referred to as a "red-out". This is probably due to capillaries in the eyes bursting under the increased blood pressure. Humans can survive brief intervals of about 20 to 40 g, and any exposure to around 100 g or more is lethal. -Wikipedia

by Sven Viking November 25, 2005

red out

Being completely high on weed, probably because of the colour your eyes turn. 'Red' can be used for short.

"Damn, you're red out!"

by d55 September 15, 2006

Big Red Black Out

Approximately when an Indiana University PC blackscreens on you, making you think that you have lost everything you have been working on, then suddenly your screen reappears.

Do not freak. That is what we call a Big Red Black Out.

by Legatus 1TTA1 March 3, 2008

Wipe out the red from my ledger

It's a book-keeping term. Black ink means profit and red ink means debt.

As in reference to "The Avengers" when Black Widow said: "I want to wipe out the red from my ledger"

She feels that if she 'wipes out this debt', she will be free from whatever problem is plaguing her

by Andyakat May 26, 2013

roll out the red carpet

to give someone a ceremonious welcome

They were ready to roll out the red carpet when they heard that a celeb was in thier city until they realized he was not the real McCoy.

by Light Joker November 1, 2005

Rolling Out the Red Carpet

While participating in anal sex, punch your partner in the back of the head. At this exact moment pull out as hard as you can when the rectum seizes your snausage. With any luck the rectum will be pulled out. Now just walk backwards slowly while you "Roll out the red carpet."

I rolled out Sally's red carpet yesterday, and now she has poos sporatically.

by Kingjared420 November 14, 2004

eat out at red robin

When you have oral sex with a girl named robin when she is on the rag

Guy 1: (comes from bedroom back to party with blood on face) what's up guys?

Party Guy 1: HAHAHA did you just eat out at red robin?! HAHAHA

Guy 1: (wipes blood off face and runs out the door crying)

by 1The Last Brave Bishop February 17, 2009