Keep the blue side up! 

Salutation; refers to the artificial horizon indicator on an aircraft instrument panel. Blue represents sky and black represents the ground. If the black side is up, this will not end well. Similar to truckers' salutation of "Keep it between the paint" and satirical theatrical salutation of "Break a leg."

Said to a spouce: "See ya later, honey; keep the blue side up!"
To a friend: "Remember to keep the blue side up!"

Keep the blue side up! by Melody Lawson August 28, 2008

YouTube Blue Balls 

A term used to describe the feeling when you are watching a video, and then the video suddenly stops loading. Thus forcing you to wait even longer to watch the whole video.

Tom: Hey did you watch the new Battlefield 3 trailer yet?!

Bob: Not all of it, half way through the video I got YouTube Blue Balls...

YouTube Blue Balls by miles9110 June 30, 2011

Jew Blue 

That light blue metallic color that old Cadillacs came in. Mostly seen with "sim con" tops on them.

I have a 1984 Jew Blue Caddy Seville with a white fake convertible top. Its ready to be shipped down to Florida.

Jew Blue by doosh laroosh May 3, 2010

Nipsey Blue 

The shade of blue commemorating the life of rapper and businessman Nipsey Hussle who was fatally shot at 33 years old

"Did you see the color of that car?"
"Yeah it was Nipsey Blue, rip Nipsey Hussle."

Nipsey Blue by LouisvilleNative April 7, 2019

out of blue 

"Out of the blue" is an informal English language idiom that describes an event that occurs unexpectedly, without any warning or preparation. It is used as an adverb. The "blue" in the phrase refers to the sky, one from which a sudden thunderstorm is unexpected.

Even we never talk to each other before, she decides to see me out of blue.

out of blue by Imsohangri May 10, 2018

lickety blue 

crazy, insane, daft, not right in the head.

If you think that you can get away with that, you must be lickety blue!

lickety blue by quicksdraws September 28, 2008

my blue 

your blue is the one you most care for, your bestfriend, your soulmate even, your blue is the one that your close to.

you: your my blue!
friend/partner:im your what?
you: my blue! the one ill care for and the one that saved me!

my blue by maxxthecoolguy:3 May 26, 2023