Blue eyes syndrome 

People with blue eyes (or any exotic color) tend to keep them open very wide. Which can make them seem a little high at times or in some cases, just plain out creepy. This may be a conscious action caused by wanting people to see they're rare eye color. Or just simply them being weird or not noticing.

Person 1: Woah, why did miley cyrus look like that in blue eyes meme of her
Person 2: Oh, she's probably got blue eyes syndrome

Blue eyes syndrome by Interstellar444 October 18, 2021

Blue Yeti 

A very popular desktop microphone that has become a gold standard for most casual content creators. Mainly used for podcasts, livestreams, narration or ASMR.

User 1: Which mic should I get for podcasts?
User 2: Blue Yeti for sure
User 3: There are also cheaper mics if you dig around on Amazon or Aliexpress and their quality isn't that far off tbh

Blue Yeti by Mary Mary Quite The Contrarian November 15, 2021

Blue M&M 

Someone who is cool all day, every day. Girl's love him, guys wish to be him.

"That guy helped me get my wallet back. He's such a Blue M&M."

Blue M&M by MikeTysonsFrontTooth February 12, 2022

Blue Lobster jumpscare 

a crayfish suddenly appears, with Bach's Toccata and fugue in D minor as musical accompaniment

Bruh! Blue Lobster jumpscared ! again!

Blue Lobster jumpscare by UrLocalSeagull April 15, 2023

Blue bird enjoyer 

People who seem to appreciate video game characters who are blue birds. Those characters share many traits like narcissism, arrogance and being pretentious. People that enjoy one of these characters often seem to enjoy many of them. Blue birds are characters such as: Revali from the Legend of Zelda: Breath of the Wild, Falco from the Star Fox serie and Birdley from Deltarune

Person A: Hey! What are your favorite video game characters?
Person B: I appreciate Revali from Breath of the Wild and Berdly from Dertarune.
Person A: Wow! I am a blue bird enjoyer too!

Blue bird enjoyer by normal_hehe June 29, 2023

blue dream 

Fucking hilllariousss strain of maryjane that sends foolish highschool girls into Comas.

Also has a good high

"Hey, may I purchase a bowl of that bud for five dollars for me and my friend?"

*faint*

"SHES IN THE BLUE DREAM!"

blue dream by thisshitisgabageagain October 21, 2009

Blue Screen of Death 

Also abbreviated as BSOD, the Blue Screen of Death is:

1. The most terrifying thing even to appear on the monitor of your PC unbidden. Happens quite frequently when one's GPU is on the fritz.

2. The reason the color blue makes me uneasy.

1. Hmm, a new Java game. Looks interes- wait, why did my screen turn black suddenly... OH SHIT IT'S A BSOD! AGH! HELP! HELP!

2. I don't like that shirt. It's the same shade as a Blue Screen of Death. Please don't wear it again, or at least sit a little farther away. And stop laughing at me, it's not funny. It's not funny!

Blue Screen of Death by Shalstev January 18, 2010