A shortening for "Rainbow Six Siege". Normally used when typing out the game title.
Friend: Dude, you wanna play some R6 Siege
You: Yeah, bro... let's not play ranked though
The shittiest fucking game in the universe where the whitest people named cody scream racial slurs out loud for all the neighbors to hear. Cody is usually gay and has a boy sucking his dick while playing. Cody also sucks at the game.
Person 1: “hey cody wanna get on r6 siege”
Cody: “no i’m out with my boyfriend we can scream racial slurs later cause i’m gay and trash at the game”