Katjana 

An extreme nerd and band geek.

A person whose smile eats their whole face.
A Katjana is generally seen with huge headphones and a large backpack wandering around.
Average grades, but very good at playing instruments.
Usually, the saxophone or bass clarinet. (This can differ from Katjana to Katjana.)
Teachers do not like them.

Extremely loud.

Please don't turn all Katjana on me.

Katjana by Aleyhay July 20, 2011

Andrew's katana

Andrew's Katana states that, for each intelligent person in a room, a person of opposite intelligence and one order of magnitude louder must also exist.

"Quite frankly, I disagree with him on a number of economic policies and-"
"TRUMP 0 16!!!!!!!"
-Andrew's Katana in action

Andrew's katana by millsad November 8, 2015

Katanatard 

A person who unquestioningly believes any (or possibly every) myth, no matter how incredulous, about the cutting power, efficiency, design, manufacture, materials (typically the steel) and other attributes of the katana (whether an artifact or a replica), especially in the hands of a samurai, ninja or some other action hero. Typically, the katanatard will also feel the need to make similar extravagant claims him/herself to everyone else (especially any skeptics), in spite of a typically superficial knowledge at best of militaria and military history. Often also a japanophile, sometimes also an otaku, and possibly, but not necessarily, also someone with a sexual fetish for the katana.

Origin: Blend of "katana" and "retard", probably modeled on "fucktard" and similar words with -tard as the second element.

I heard this one guy on the boards go: "European plate armor? That's the best you can do? Please. An Edo-Period katana could cleave a Sherman Tank in two." Damn katanatards these days...

Katanatard by Causal Object of Gamer Desire September 19, 2009

Katiana 

Kind hearted girl who loves to hangout with friends and family.
shes gregarious and easily makes friends. trustworthy and fun to be around

that girl is so katiana, i want to be her friend!

Katiana by anonymousgurrrl October 31, 2011

Chainsaw Katana 

The most powerful weapon in all existence. It has been known to cause multiple emotions in humans, the two most common being fear and sexual desire. It is thought that chuck norris himself crafted this destroyer of worlds. Photographs and drawings of the divine weapon must have an explosion photo shopped in the background so that the paper doesn't burn up from the awesomeness.

Man 1: Did you hear about that planet exploding the other day?
Man 2: Yeah, must have been a Chainsaw Katana

Chainsaw Katana by joeydud15 August 30, 2013

Katana Cultist 

Someone who thinks the katana is the ultimate weapon, unbeatable by any other sword. Also call Kanata Fanbois.

"Dude look what I got! It's a combat ready katana! Imma win for sure now!"
"I never had you pegged for a Katana Cultist, get that out of here."

Katana Cultist by Nilgodmode January 21, 2015

katana zero 

A game about a dude with a samurai sword killin a bunch of bad guys while on steroids.

Katana Zero is Hotline Sekiro that's also the great great great great grandchild of John Wick and Max Payne

katana zero by CrossEdgeX7 April 2, 2020