To ask if someone wants to do something. To find out if someone is willing to help with a task. Matrix slang.
"So, about the plan, are you red or blue on this?"
by Headexpl0dy October 3, 2007
The act of taking one's cellular phone, while high, and using it to distort your eyes.

Preferably at night, stare at an object, such as a tree or sign. Keep both eyes fixed on that object and lift your cell phone to your right eye. Continue to keep your eyes on the object and your phone lit. After 30 to 45 seconds, remove the phone and look around. One of your eyes will only see red and one will only see blue.

It's insane when you're high. Everything seems to be in 3D. Have your friends fake punch you in the face or something.
What do you want to do? Maybe a little Red and Blue.
by A.Lo124 July 10, 2009
Mortal enemies, They are always fighting, But none will never win. Neither is Evil or Good.
Red and Blue
Halo,
NATO and the Warsaw Pact,
Coke and Pepsi,
Their are plenty more.
by fuckaaaa February 1, 2008
Two gay pining characters from some sort of media. The trope is generally associated with friends/enemies/lovers. Some examples include:
Keith and Lance (Voltron: Legendary Defender)
Adora and Catra (She-Ra and the Princesses of Power)
Asami and Korra (The Legend of Korra)
Ruby and Sapphire (Steven Universe)
Tony Stark and Steve Rogers (Marvel Cinematic Multiverse)
Ash and Gary (Pokemon)
Light and L (Death Note)

And many more...
They're my red and blue gays and I love them
by changkyunsguccislider November 26, 2018
Feeling sad, down, or depressed because of having knowledge about something.

The red pill represents "knowledge, freedom and the (sometimes painful) truth of reality" so you can sometimes get the blues (sadness) from it.

The opposite of ignorance is bliss.
Person 1: Hey why you so down in the dumps lately?
Person 2: Just learned some more about the world, just the red pill blues I guess.
by Chester612 December 3, 2017
An absurdly overrated and morbidly dull and boring web show. Watched mostly by obsessive fanboys/girls
z0mG red vs blue iz teh b3st fukin sh0w eva b1ch!!!!!11!11
by abcdef123happy man December 13, 2009