Someone who sits in a public toilet taking a shit as silently as possible, not moving around or making any noise, with the intent of catching someone doing something embarrassing thinking they are not there.

It is usually a good idea to duck down and check for shit ninjas before you do something that would otherwise be considered embarrassing.
Joe: *walks into bathroom, thinking nobody is in there*
Joe: FUCK, that slutty little bitch was SO motherfucking hot! But too bad she's only twelve years old! *slams wall with fist*
*sound of rustling toilet paper*
Joe thinks: (Oh god, it's a shit ninja)

Mike: *walks into bathroom, thinking nobody is in there*
Mike: I gotta take a massive fucking dump! *FAAAAAART*
*sound of someone shifting around on a toilet seat cover*
Mike thinks: (fuck, not another shit ninja)
dari Duo47 Senin, 02 Maret 2009
The evil bandits that shit in one's mouth over the course of a night, leading to the not-so-fresh feeling we all know as morning breath. The ninjas camp out longer after one participates in a night of drinking or other elicit activity.
Man, the shit ninjas really got me last night.
dari the ham wallets Sabtu, 11 Februari 2012
The art of taking a shit or farting without your boyfriend, husband or roomates knowing you did so. Only females can be shit ninjas
"Dude my wife is a shit ninja, we've been married 2 years and to my knowlege she hasnt shit once."

dari anthony calloway Minggu, 17 Februari 2008
He who shits in close proximity to others without being noticed.
Guy 1: Who in the hell shit on my shoe?

Guy 2: Looks like we have a Shit Ninja on our hands!
dari ksarmyguy Minggu, 21 Desember 2008
what douchebag video game nerds call you when they cant think of anything else to say.
video game nerd: why did you trip me down the stairs jackass?

me: fight me?

video game nerd: you know what! YOUR A SHIT NINJA!
dari Grantino Senin, 29 Oktober 2007

Email Harian Gratis

Tulis alamat email lo dibawah sini untuk bisa mendapatkan Kata Urban Hari Ini, gratis setiap pagi!

Email dikirim dari daily@urbandictionary.com. Kita nggak bakalan nge-spam kamu kok :).

×