When you’re at a stop light and the light goes red to the green
We got that red to the muh-fugging green, if you know what the phuck I mean.
Red to the green in the mean machine.
Keep on talking like a meme machine.
Etc
two of the same word combined, a rare term used for red headed individuals in a small community, or an absolute moron, maybe even both depending on the context
person 1: look at that red red!
person 2: do you mean I'm stupid or soulless?
Person 1: both