Something from the past you never knew knew existed, but realize as an adult you know everything about them.
Air Supply? Never heard of them. Oh, yeah, I recognize that song. Hey, I know all the words to this one. Wait, I know that one too. Holy crap, they also sang this one?! How do I know all the words of 11 of their songs and never knew who the hell they were?!?! That snuck up on me like a nostalgia ninja!
When two men go to one's house, and start jerking each other off
Hey, do you want to come over and start Playing Ninja.
Like a true friend he gives a shit 5% of the time, raises hell 30% of the time, and can piss you off 65% of the time. But good time,Promise
A breed of dangerous African ants that enter houses and attack people
Unfortunately my house got attacked by Siberian ninjas
Verb
1. Generally used in online gaming, describes the action of completly disspearing from someone's sight while fighting him. After the person dissapears, he generally owns the guy he dodged.
Holy crap dude! That guy just Ninja-ed me. WTF
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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!
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When a guy has another guy insert into his girl making her think that it is him, while he quietly slips out the door to wave at her thought the window outside
She was so confused after i pulled the sneaky ninja on her last night
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