Blue alert

Hype sensitivity of minorities to police presence, such as changing behaviors even though they are not doing anything wrong. For example, a motorist slowing down at the sight of a police car when s/he was not speeding in the first place.

I got the knot on my head from riding with Tyrone experiencing a blue alert.

Blue alert by Hutchmark April 21, 2020

Blue alert

One of the Funniest scenes in television, this originates from the BBC Sci-fi sitcom Red Dwarf the episode is S6E2 titled Legion and it goes like this;

Rimmer: Go to Blue Alert.
Lister: What for? There's no one to alert, we're all here.
Rimmer: I'd just feel more comfortable if we were all on our toes because everyone's aware it's a Blue Alert situation.
Lister: We all are on our toes!
Rimmer: May I remind you all of Space Corps Directive 34124?
Kryten: 34124. "No officer with false teeth should attempt oral sex in zero gravity".
Rimmer: Damn you both, all the way to Hades! I want to go to Blue Alert!
Lister: Okay, okay.
He presses a button; a sign reading 'Alert' in blue lighting begins flashing pathetically in the corner of the cabin
Rimmer: Thank you. A bit of professionalism.
...
Rimmer: Step up to Red Alert!
Kryten: Sir, are you absolutely sure? It does mean changing the bulb.

Blue alert by Proper Sheffield lad April 29, 2022

Blue Alberto 

The Artist Alberto Giacometti is pictured on the Swiss hundred francs bill, wich is blue.

"Wow, these Hood Rappers sure got a lot of Blue Albertos!"

Blue Alberto by 41Poop March 31, 2021