On the ninja seat

When you're in the bathroom and trying to take a quiet crap if someone is outside the door. Or when ther is multiple people in the room at once

Tim was on the ninja seat when Judy was waiting outside the door for him.

by Lizzie Smith II November 17, 2010

ninja bang

To have silent sexual intercourse on the floor with minimal clothes removal, as to avoid discovery of fornication. Usually done by people who still live with their folks or prudish friends.

Juan: yo, we gonna have to ninja bang today, mamacita, cuz my folks are in the next room

by gothaliciouswithcheeze February 13, 2014

Ninja Smashin'

Having sex quietly, sneaky, undetected

Ninja Smashin' is doing it in the office and know one notices

by GetSome515 February 6, 2012

ninja mark

He is a swift and agile ninja who is also cool, hot, and awesome.

Dayum ninja Mark! You are so cool and awesome.

by GummyPhysics January 13, 2017

Ninja Dump

To take more than half a roll of T.P. and cram it with a plunger and then take a crap in the bowl, and giving it a single flush to lodge the T.P. and poo, in the Toilet, then when finished wipe your ass with the T.P the entire roll and leave it on the floor and to take the Plunger with you so they can't unclog the toilet. they will flush and flush but to no progress. simply leave with their plunger knowing your king of the lowest move at a party ever and on the housekeepers most wanted list.

hey lets go no one's gonna be able to be near that room i just took a Ninja Dump in there here quick hide the plunger.

by LargeLONEWOLF22 August 1, 2014

Ninja spider

A very big fucking spider that runs like a fucking ninja

I just killed a fucking ninja spider

by PurpleOwl22 March 26, 2019

Penis Ninja

An assassin who uses stealth and guile to assassinate a penis, often causing death to the owner of that penis. Scissors, knives, razors, and fire are typical weapons of a penis ninja. An historical example of a penis ninja would be the woman who killed Genghis Khan by slicing off his royal penis. Lorena Bobbitt is a more modern penis ninja of note, although her intended target managed to survive and was reunited with it's body.

I found out Jasmine carries a tanto knife in her purse. I hope she's not a penis ninja.

by Flavius Schmoesephus December 12, 2016