fart ninja 

One who covers their nose with the collar of their shirt to avoid the odor of a heinous fart, thus resembling a ninja.

After eating all that broccoli,I turned the whole dinner party into a bunch of fart ninjas.

fart ninja by Dave Beyer July 30, 2008

ninja fart

A silent, yet super stinky fart.

I love to release my Ninja Farts just before exiting the elevator.

ninja fart by Jeff Artist November 28, 2006

ninja fart

The act of releasing a totally disgusting and gross fart without a sound. Hence the term, silent but deadly!

While watching TV, Carol cut a ninja fart that grossed out her boyfriend. Since there was no sound, she was able to blame the dog! Her boyfriend almost puked and the dog ran away!

ninja fart by mdguy September 16, 2006

Ninja Fart

A silent fart that someone sneeeeeks in after someone else has a noisy fart, so that everyone thinks the stink belongs to the first asshole.

Innocent Bystander: Ewww Kate, that fart is rank.
Kate: Nah, that's Dani's ninja fart. She been stinkin it up all day, cuza dat nasty hamachi she be eatin.
Dani: Eh, heh heh. You caught my ninja.
Innocent Bystander: Ew Dani. Not cool.

Ninja Fart by D.Ella Hughley June 23, 2010

ninja fart

1) when you are on Skype (or other voice chat services) and hit mute before letting one blow.
2) one of many random secondlife POP gesturbations

Bro, I just ninja farted.
Lolwut?

<3 Ninja Fart Pop <3

ninja fart by xbettyx April 7, 2010

Ninja Fart

The act of putting your hand over your butt, farting into your hand, closing your and entrapping the fart, and then throwing it into some one elses face like a ninja throws a star.

Samantha ninja farted Courtney!

Ninja Fart by coop4870 July 7, 2010

Ninja fart

Basically a "silent but deadly" fart. These characteristics describe a ninja. Silent and deadly...

Alex: Okay, what the hell is that smell and where did it come from?!
Jake: Somebody just had a bad ninja fart!

Ninja fart by Flubber Womp December 8, 2010