chatting ninja 

One who keeps their status 'invisible' on instant messenger in order to 'screen' messages and/or avoid certain individuals.

Hey, Amy! Ping me when you're available to discuss the project, as I am chatting ninja today to avoid being distracted by other co-workers who are time wasters.

chatting ninja by L-2-the-Stew October 10, 2010

concert ninja 

One who disappears mysteriously from a group of friends during a show, using fellow concert goers as their smoke screen.

Tim had been last seen swaying near to his room mates. The concert ninja was later discovered passed on top of his bed with one shoe off.

concert ninja by Gaddo007 March 20, 2012

Suck Ninja 

Something (person, unfortunate event) that comes out of nowhere and sucks the fun out of what you are doing.

Dude, the cover for the show is $7, I only have $5. Suck ninja!

Suck Ninja by ibehim1 March 28, 2012

Spirits Ninja 

An educated spirits specialist with a no nonsense reportoire. One who guides, educates, inspires, with no bull crap. Genuine. Ninja

Peter knows so much about different types of spirits, it's like he's a superhero Spirits Ninja!

Spirits Ninja by Z Wine Ninja October 22, 2012

Ramen Ninja 

A ninja who has trained in the art of ramen noodles. Ramen Ninjas are adept at stealing delicious ramen under the cover of darkness, handling hot bowls of ramen without making a sound or dropping them, and using various ramen ingredients as lethal weapons.

1: Hey, I'm hungry.
2: Let's get some ramen!
1: But how? It's night and we'll get in trouble if we wake someone up!
2: No problem. I'm a Ramen Ninja.

Ramen Ninja by Proudryukin the Short July 18, 2012

Media Ninja 

A badass girl who owns the 'game' that is social media and media in general.

Someone who should definitely be hired.

Basically someone who's awesome at media, and is a ninja.

Wow, look at all those wicked posts. She's a media ninja.

Media Ninja by KarmaChameleon January 17, 2013

Fat Ninja 

The unsubtle affair. Where two people think they are being sneaky, but everyone knows what is going on.

The act of cheating out in the open, but being oblivious to it.

Joe: "Do Bill and Sue really think no one knows they are hooking up?"

Bob: "I know, right? Pretty Fat Ninja there."

Fat Ninja by Chewbacca with a Brazilian September 1, 2013