blueshell 

Ruining friendships since 1996

guy 1: im about to win
guy 2: i dont think so *throws blueshell*
guy 1: fuuuuuuuucccck, were no longer friends
guy 2: :(

blueshell by lolman63 December 12, 2018

Blueshell 

To rank down by a lot.

Damn it. My opponent activated a blue shell and I blueshelled from first to eighth. How am I gonna be a pro at Mario Kart?!

Blueshell by Crayraythetyrone August 31, 2014

blue shell vagina 

A vagina so desirable that other vaginas flock to it, similar to the blue shell in Mario Kart attacking the enemy in first place.

Did you see her pussy? It’s perfect, a true blue shell vagina.

blue shell vagina by True_X_Blue August 10, 2023

Blueshelling 

When a person sabotages you for doing better then them. Reference to the blue shell in Mario Cart that takes out the player in first.

Jeff from accounting was Blueshelling me from getting that promotion by telling the boss I slept with his wife.

Blueshelling by Jack Tator December 21, 2010

Blue Shell

A cursed item in Mario Kart made by satan himself that targets you in first place, possibly ruining your race and friendships; Hell in the form of a Mario Kart item

"That Blue Shell was absolute bullshit!"
"If you use that fucking Blue Shell, I will beat the fuck out of you

Blue Shell by Cosmic. December 8, 2018

blue shell

From Mario Kart, a Nintendo game.

Whenever you get ahead and think you have it made, someone behind you shoots a blue shell at you and takes you out.

(Blue shells fly directly to the person in first place and pack the biggest punch in the game)

I was doing great at my new job then I was blue shelled. (fired)

blue shell by Toadster March 10, 2004

Blue Shell Syndrome

Living your every day life and swearing you can hear blue shells coming for you to ruin your day. Usually due to obsessive playing of Mario Kart games.

"Do you hear that blue shell?"

"No? What are you talking about? I think you've got Blue Shell Syndrome mate!"

Blue Shell Syndrome by TCJGforce128 June 11, 2017