a cough of which multi-coloured mucous is symptomatic
Kate has been suffering from rainbow cough for two weeks
Blood rainbows are rainbows that form out of human hatred and dread. They have the appearance of a rainbow at first, but the closer you get, the redder it gets, until it looks like pure blood. Unlike most rainbows, there are ends to these, but at the end of them, there are Death Unicorn dens, and if you get anywhere near those, there is no chance that you'll survive. I implore you not to do it.
"Hey, dude, is it normal for your eyes to be bleeding like that?"
"Oh, absolutely not! I just happened to look at a blood rainbow :)"
"Oh, okay, you're never going to be able to see again! :)"
A combination of douche, asshole, and jerk. When a male person has the qualities of all three, and no other title will describe him. They are colorful in every shade of black and grey. Along with some other undefined colors and random objects, stuck inside their own personal rainbow.
Girl 1: Idek how to describe him. I would say he's a jerk, with a dash of douche, and maybe an even tinier bit of asshole?
Girl 2: Haha, a douchasserk rainbow.
A mythical jump performed in Super Mario Odyssey made popular by the fan base of the SMO speedrunner Smallant1.
"lmaooo just do a rainbow spin it's easyyyy"
Where a guy name Zackary Schmidt sticks his arm in another mans ass... Elbow first.
Both: Rock, Paper, Scissors!
Zack: Well, I guess you get it first.
Man: *Sigh* I lose every time.
Zack: I guess I'm Rainbow Rumper again.
Using an excessive variety of colours in Excel.
"So I put the row subtotals in pink on a blue background, these column subtotals in orange on a black background, put the totals in tangerine on a teal background and highlighted the negative values in fuchsia. This should make it really clear to understand. What is your problem?"
"You're murdering the rainbow."
1. When her booty so fat, pussy ain't flat, and titties where it's at, it can make a gay man's dick say, "Hello!"
2. When his stomach so flat, his dick's a bat, and he shaved his mat, it can make a lesbian's pussy go "splat."
1. When Drake saw a real woman for the first time, it straightened the rainbow. So he went and dumped his boyfriend Hailey.
2. When Michelle caught a glimpse of David's long dong, it straight up straightened the rainbow. So she went and dumped her girlfriend Claudia.