The time when you look at a clock and realize that a large portion of time disappeared. It is NEVER 'ninja o'clock', because by the time you've realized the time, it's at least a half-hour after you expected.
Friend 1: "Dude, what the hell happened to the day? I had that interview for that job."
Friend 2: "Ninja-thirty happened, son... remember that 'I'm only going to play a couple games' Madden marathon we just had?"
Friend 2: "Ninja-thirty happened, son... remember that 'I'm only going to play a couple games' Madden marathon we just had?"
by Agent 14 December 16, 2009

A variation of the common childhood game “rock, paper, scissors”. Ninja kills bear, bear kills runner, runner runs past ninja. Therefore, ninja wins over bear, bear wins over runner, runner wins over ninja.
by Sweet Tits with a K March 26, 2019

Three or more people simultaneously performing and receiving oral sex by way of lying sideways, mouth to genitals, forming a closed shape pending the number of participants
Pondering the image of more than two people sixty-nining, it occurred to me that it wouldn't resemble the number 69, it would be more like a shuriken, so they would be ninja starring.
by RobbRush89 February 16, 2024

by Brosocrates August 27, 2015

A cover agent in feudal Britain. Trained in archery, shooting, swimming, canoeing and swinging through trees like apes whilst staying at Center Parcs.
The Holiday Ninja waged war on Center Parcs, forcing them to reverse their decision to close for Her Majesty The Queen's funeral.
by Sue Dow-Nim September 15, 2022

1. Alias or fake name used to disguise a person's real identity.
2. A word or phrase appearing within a larger text that does not make sense or has no discernible meaning.
2. A word or phrase appearing within a larger text that does not make sense or has no discernible meaning.
1. That trash talking blogger won't reveal anything about himself except his ninja codon.
2. His email was so full of ninja codons that is was little more than gibberish.
2. His email was so full of ninja codons that is was little more than gibberish.
by Loadmaster March 27, 2011

A controversial gamer that needs to learn a few things on how to freestyle rap. Ninja could also be used when not enough movement is going around or being the reason Drake is famous.
I ninja'd drake.
Hey kids! I want to see more steering in those parts, ninja them! There is a reason you're not getting paid.
Hey kids! I want to see more steering in those parts, ninja them! There is a reason you're not getting paid.
by Uncle Jim Joe November 23, 2020
