Ninja Face 

The art of using face unlock on another person's smartphone without their knowledge. Usually performed by a child from some sneaky angle while distracting the parent with other matters.

She keeps using Ninja Face on me to watch that stupid YouTube channel

Ninja Face by PatTheChat June 8, 2019

North Face Ninja 

The description you'd use to describe some chav who hangs out outside Tesco's at 9:30pm, has on a north face cap, north face gloves, a north face jacket, a shitty face mask and a fake pair of 110's.

Mike " Just got me new full north face outfit, gloves hat and everything"
Steve " Christ mike don't go out looking like a north face ninja would you..."

North Face Ninja by MccathryTalksAboutChavvyStuff July 6, 2016

butt face ninja monkey 

some shit word that sounds fuckin funny

dude your mom is a butt face ninja monkey

butt face ninja monkey by cris rock September 24, 2010

facebook ninja

One who is active within the realm of Facebook but never allows him or herself to be seen as "online"

Notifications - John Doe commented on your status. < one minute ago

Online Friends (0)

"John Doe is such a facebook ninja!"

facebook ninja by Shinejah January 31, 2009

Facebook Ninja

Someone skilled in the art of shadow netting; Appearing in facebook messages or pictures without owning an account. A Facebook Ninja can never be "tagged" and never appears on a wall. Therefore, they are one with the shadows of the internet and are needless of an account.

"Drew should just get an account already so I can write on his wall!" "He doesn't need to, he is a facebook ninja..."

Facebook Ninja by Drewanium February 22, 2008

Facebook Ninja

One who skillfully and stealthily changes others' Facebook statuses when they accidentally leave their computer on while they are sleeping, temporarily away getting coffee, etc.

Cheryl: Hey look at Matt's last status update...reads off computer screen: "I think Justin Bieber is really cute! <3 <3 <3" This doesn't make sense. Matt's not gay!

Victoria: That must be the work of a Facebook ninja.

Facebook Ninja by FuctButSects October 18, 2010

Facebook Ninja

1.(Noun) A term used for when you don't want to talk to someone but they instant message you over facebook. You then proceed to not let your presence known, and go into a ninja hiding position.
2. (Noun) A term for someone who does not appear to be online facebook, but goes around and comments on everyone's wall.
3. (Noun) A term for someone who is not in the social networking exchange known as facebook, but is tagged in pictures and messages.

"Hey Daniel ;) "
*Oh God, do I really have to talk to her?*
*5 minutes later with no response*
"Daniel, stop being a ball-less facebook ninja and talk to me!"

Kelly commented on Daniel's status
"What? Kelly's online? But she's not on my 'online' list.... what a facebook ninja."

*looking at a friend's picture with a hot chick in it*
"Oh wow, who is SHE?"
*searches for her, can't find her*
"Dang it! She's a stupid facebook ninja! Gah!"

Facebook Ninja by ncmo April 4, 2010