color of the day 

A colored bandana or other clothing item worn by undercover cops. Every day this color changes so cops in uniform can tell an undercover cop without having them pull their badge. This allows undercover cops to maintain undercover status while providing protection in any instance of uniformed involvement.

I almost shot him, but then I saw he was wearing the color of the day and knew he was a cop.

color of the day by BiggB April 26, 2006

color of the day 

reffering to the color of a girls underware

Sally, whats your color of the day?

color of the day by buckzd June 12, 2005

color of the day 

UPDATE:

Color of the day Was started in Ellet By Zack Rodgers And Jessi Nagle, Color of the day reffers to the color of a girls underware (usually the color of a thong)

Hey Katie, Whats the color of the day?

color of the day by Zack at Tarnic.com December 28, 2005

color of the day 

A game some guys (doesn't matter what age) play where they try to see the color of a pretty girls thong(underwear) for the first time that day.

(at lunch in school)

Greg: you seen the color of the day yet?
Will: no, still looking.
Greg: wait, BLUE! With a red whale tail!
Will: where?!
Greg: bent over at the vending machine!

color of the day by DrPantsPhD (gregk) April 6, 2009