The Big Ninja

Is what AIDS or HIV is referred to in a jail or prison.

Inmate A says to inmate B- " Hey watch out for that dude... he's got The Big Ninja.

by The_ Dragon February 13, 2008

Ninja Walk

Walking in a crouched position as if to hide an erection.

The other day I was ninja walking around the grocery store to make people think I had a hard on.

by zbishop May 19, 2010

Ninja Fucking

To fornicate a person, or being, without them knowing or noticing; Also slang for succesfully using the "date rape drug"

Example 1
Ninja Fucker: "That blind girl had a nice rack last night huh"

Random guy: "Word."

Ninja Fucker: "I ninja fucked the shit out of here"

Example 2

Girl 1: "Don't go to any parties at Will's house'

Girl 2: "Why not?"

Girl 1: "I heard Amanda got straight ninja fucked over there"

Example 3

Smoov-e: "I'm a Ninja Fucking master"

by DroBot January 14, 2011

Horny Ninja

1. What you get when you sing "I'm a hoodie ninja in a fast asian accent.

2. A ninja who is horny.

1. Jennifer: "I'm a ninja. I'm a horny ninja!" Samantha: "Did you say horny ninja???"

Jennifer: "No, I said I'm a hoodie ninja. I just said it in a fast asian accent."
Samantha: "Ohhh."

2. Ted is gonna beat me with his naked num chuck, because he is a horny ninja.

by Mrs. Candy January 2, 2012

Ninja Birthday

Noun: The day one crept into the world. Best calculated by using your birthday minus, 9 months.

Dave: Hey, it's my birthday today!
Logan: But it's August...I thought your birthday was in April?
Dave: Aaahhh yes, this is my ninja birthday.

by ponderingponderer April 8, 2010

Ninja Monkey

a quick and dirty utility program written by software developers for software developers that can be used for ad hoc testing, viewing data, debugging, or other general purpose tools. It is usually passed around from developer to developer as other people find it useful.

Jim: It takes me 45 minutes to set up my machine for testing.

Bill: I trained a Ninja Monkey to do that in two minutes, I'll email it to you.

by QanwI' January 2, 2009

Milk-Ninja

A fat kid who throws milk at a faggots face because hes always being a bitch

Jesse: Hey antonio threw milk at carlos's face
Hugo :Yeah, hes a fuckkin milk-ninja , and carlos is gay

by Milk-ayla May 26, 2009