remember the time you guys smoked me out when i was watching eclipse with my girlfriend? man that was a pro ninja smokeout
by SirSmokeaLotz December 23, 2010

the act of taking two 15 inch black dildos and tieing them together with a string like nunchucks. while shiving one up your ass you then swing the free dildo around and sneak up behind your partner and hit them with it. thus creating a ninja like expirience.
by The Urban Flame February 23, 2011

To masturbate/fap silently.
Dave: Why is fapping called fapping?
Max: Because fap is the noise it makes.
Dave: I've never heard that before ..., I must be some kind of ninja fapper
Max: Because fap is the noise it makes.
Dave: I've never heard that before ..., I must be some kind of ninja fapper
by honkthedonk January 17, 2013

asshole: "What is that outside?"
you: "I'm not sure, but i think it could be NINJAS."
asshole: "There are no ninjas on the lawn."
you: "OF COURSE THAT'S WHAT THEY WANT YOU TO THINK; THEY'RE NINJAS."
you: "I'm not sure, but i think it could be NINJAS."
asshole: "There are no ninjas on the lawn."
you: "OF COURSE THAT'S WHAT THEY WANT YOU TO THINK; THEY'RE NINJAS."
by SnowhuouV October 24, 2012

While a girl is giving you head..right as you cum karate chop her in the back of the head then stick your dick in her nose
Guy 1: Dude this girl was giving me head then i totally did the ninja nosejob on her
Guy 2: Thats fucking gross man...thats messed up
Guy 2: Thats fucking gross man...thats messed up
by sandman142 August 17, 2010

Ninja Rowson is one of the best maths teachers to have. He will perform a dance called the Ninja dance where he moves around as If he was a ninja whilst impersonating a Chinese/Japanese accent. He is a good teacher although sometimes he gets in a strop and sits back down in his chair for around 10 minutes of the 60 minute lesson you have with him .
"It's not fair you have an alright maths teacher" - Tyler
" what are you on about you've got Ninja Rowson"
" what are you on about you've got Ninja Rowson"
by XD :) July 29, 2019

What some rappers, most notably Devlin fight whilst rapping - Moving their arms around like windmills trying to look "street" they look like they are blocking attacks from invisible ninjas
by stragen November 2, 2012
