Top definition
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)
by Toadster March 10, 2004
Get the mug
Get a blue shell mug for your daughter-in-law Beatrix.
2
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: :(
via giphy
by lolman63 December 12, 2018
Get the mug
Get a blueshell mug for your daughter-in-law Beatrix.
3
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?!
by Crayraythetyrone August 31, 2014
Get the mug
Get a Blueshell mug for your daughter-in-law Beatrix.
4
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
via giphy
by Cosmic. December 08, 2018
Get the mug
Get a Blue Shell mug for your daughter-in-law Beatrix.
5
When a guy and a girl are having sex and the girl thinks the guy is going to finish too early, she smacks him hard on the balls so that she can finish first.
Sam: I was so close to finishing last night with Diane but then she totally blue shelled me and now I'm walking funny.
by Pow! Right in the kisser! December 13, 2010
Get the mug
Get a Blue Shell mug for your daughter-in-law Beatrix.