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!

by Flubber Womp December 7, 2010

Ninja Fart

To fart without hearing or feeling it. Often occurs when the person needs to use the bathroom to take a #2.

I was lying in bed under my covers and my ninja fart almost made me sick!

by Vandalier January 16, 2012

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.

by Dave Beyer June 5, 2006