Sometimes used to refer to the first day of a girl's period.
"Sorry if I'm acting bitchy, it's Rainbow Day."
A obese cat, aka the rizzler. Lives in aubrey texas.
“Hey- wheres hello kitty rainbow peanut butter cat?” “Shes gooning to skibbity toilet and rizzing baby gronk” “gyat”
Something that makes a certain human laugh until they are about to have a seizure
The rainbow rack
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A dubble rainbow is a sign that the majestic rainbow sloth or nyan cat is nearby.
When a dubble rainbow has appeared the majestic rainbow sloth is near.
a (not so) famous threesome. (a Moon, a Sun, and a Rain Cloud.)
object show fangirl/fanboy: wow, I love the Rainbow Nights!
me: wow. great!
When you're using a dildo and it is rainbow.
Friend 1: Yo man, what are you up to right now?
Friend 2: Hey dude, just Karting on Rainbow Road, you know how it is!