Blue shirt 

Jail guard, cop, security guard, etc.
Someone with power over you in a controlled surroundings

Keep an eye on the blue shirt while I do this....

Blue shirt by Damanite February 5, 2010

Blue Lives Matter 

Blue Lives Matter is a direct response to Black Lives Matter, the whole purpose of Blue Lives Matter is to support Law Enforcement and show that not ALL Law Enforcement Officers are racist/terrible.

1." Blue Lives Don't Matter! Black Lives Matter more than Smurfs!"
2. "We support Blue Lives Matter! We support our boys in blue! All Lives Matter!"

Blue Lives Matter by Nyaika April 22, 2022

Blue hair 

Blue hair are the true colors ( pun intended) of a liberal/feminist/homosexual. Green hair is also an option or any sort of color. These are the types of assholes to yell "BLACK LIVES MATTER! BLACK LIVES MATTER!" over and over in your face if you are not wearing a mask. They will also shout it at black people too.

Liberal white woman: BLACK LIVES MATTER! YOUR NOT WEARING A MASK! BLACK LIVES MATTER! WEAR YOUR MASK! WEAR YOUR MASK!

Black man: What🤣? Stop hitting me. You have blue hair and your screaming black lives matter when I'm black!

Blue hair by Skyrim550 January 27, 2022

blue balls 

What the Blue Man Group are rumored to have.

I paid good money to see a show at the Luxor in Vegas and the best part was when they displayed their Blue Balls to the cheering audience.

blue balls by JC October 16, 2004

blue waffles 

A fake disease that suggests women who are sexually active are at risk of getting and passing on a blue tinged genitally deforming std.

Debunked here: womenshealthfoundationdotorg/2011/08/08/the-blue-waffles-myth/

Jake said he had seen a girl he was going to fuck with a bad case of blue waffles on the weekend. But he is full of shit. It doesn't exist only in photoshop. What a dumbass.

blue waffles by VoiceOreason April 27, 2015

Blue Meanie 

Blue Meanie is a slang term for 10mg of adderall, which are blue.

"Hey Matt, do you have any blue meanies?"

Blue Meanie by DreamsL0ST January 22, 2005

Blue Foot

Word used to describe a loose white female who doesn't have morals.

and the rest of the general white population.

also can be spelled: BluFoot

Example 1

Dude = see that girl you deal with last night what was she

Guy - that thing was a Blue Foot.

Dude - LEAVE IT YEAHHH

Example 2

Dude - you lips a blue foot

Guy - na blud,

dude - so why you got a cold sore??

Blue Foot by Smokey/UB3 August 22, 2012