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The color of a guys balls when they don't screw something
"Yup, he's rolling around, he's got blue balls"
Blue by Katie123456 March 29, 2008
A certain wavelength of light lying within the visible spectrum, while being the shortest wavelength. On average, it is about 475 nanometers. Its very near the ultraviolet spectrum, which is bluer than a normal human can see. It is the color of the sky, ocean, and some peoples' eyes. Honestly, I'm hoping only the colorblind are seeing this, cuz otherwise this is kinda dumb.
"Wow! The sky is so blue!"
Blue by FightOnG November 18, 2016
Eiffel 65's song "Blue (Da Ba Dee)," that was released in 1999, is a popular Eurodance song which peaked at #2 on the Billboard Hot 100 in the United States, and reached #1 in 17 countries
Wow! I love the song, Blue, by Eiffel 65!!
blue by imamylee93 April 11, 2009
Maybe one of the most misheard songs ever
Did you hear that song 'Blue?'
Yeah, it goes like 'Im blue and in need of a guy'
Oh, I thought it went 'Im blue, if were green I would die'
Blue by dabadeedabadaiy January 4, 2011
Definition 1
The act of beating up as cat!

Definition 2
Cat fight!
Example 1.
Bluedys blues RCE from time to time.

Example 2.
Guhwy didn’t like a different definition of blue, so she and Pear had a blue.
Blue by Pweaw July 4, 2021
Blue, is originally transparent, but when someone holds it, the blue sucks the sadness away from the person.
Ghostbur from the DreamSMP is always seen with blue.
He passes it around as he wants others to be happy, he holds it so much he forgets all his sad memories.
Blue by ShadowDarkus March 9, 2021