Koopa-Backdash-Wave-Slide-Hover-Walk-Moon-Landing 

In Super Smash Bros. Melee, characters who's walk-acceleration is lower than their traction value after wavelanding backwards can buffer a slight walk forwards to decrease the momentum lost. The walk input must be at its lowest value to perfectly execute the tech. (rough translation of inputs) Characters with low traction (Luigi) benefit worse than those with higher traction values in Melee. (i.e Gannondorf can benefit from the Koopa Backdash Wave Slide Hover Walk Moon Landing more than Luigi in terms of distance)
Youtube has more info on this.

The Koopa-Backdash-Wave-Slide-Hover-Walk-Moon-Landing can make virtually anyone feel like they are playing on ice.

Koopa-Backdash-Wave-Slide-Hover-Walk-Moon-Landing by Do_mmar September 11, 2020

koopa cat 

A phrase of which the definition or explanation is commonly asked, but actually, no one knows what it means.

-What's a Koopa Cat!?!?
-No one knows....

koopa cat by Webbie Frebbie November 11, 2013

Koopalings 

Bowser's original seven children. They have appeared in several Mario games. There first appearence was in Mario Bros. 3. Each one has a different personality and look to them. Also, they all have a different fighting style.

The koopalings just kicked Mario's ass

Koopalings by u_no_who_right March 11, 2010

koopa 

the insane homie you have ,loyal and helpful, will back you up in a fight without you having to ask.

yo koopa helped me beat my bully up

koopa by kowopa April 13, 2022

koopsta knicca 

A rapper who use to be with Triple Six Mafia. He usually had a satanic voice when he rapped. His best album was his first underground album Da Devil's Playgrond. After he quit 3-6 he made two albums by himself, but they weren't as well written.

Damn Koopsta Knicca always says some crazy ass shit.

koopsta knicca by Courtney March 11, 2005

Koopish 

Mid South slang for something that sucks or someone that looks stupid.

Did you see Dylan's Halloween costume? She was lookin' real koopish.

That shit last night was so fuckin koopish dawg.

Koopish by Skazellino December 17, 2009

koopa shell 

A Koopa Troopa's only armor. After it has been removed, it can be used as a projectile to pown someone.

*Cheerleader gets hit by a Koopa shell* Powned! Or however you say that!

koopa shell by spel itt rite May 14, 2006