ninja-sacking

an activity taking place amongst highschoolers, in which you...

1. steal someone's backpack while they leave it unattended.
2. remove its contents.
3. turn the sack entirely inside-out.
4. replace the items.
5. re-zip it.
when the owner of the backpack returns, they will most likely be very irritated with you. but they will get over it.

what are you doing to his backpack?" - "we're ninja-sacking it!

by ashleyvennum December 7, 2010

ninja jerk

Stimulating a male individual without consent or notice, up to and including point of climax.

Last night when I was in bed, my girlfriend gave me a ninja jerk... I woke up with cum on my pants!

by Magic Butcher September 22, 2010

Campfire Ninja

Term for a homosexual who is still in the closet; a male or female who is secretly homosexual. "Campfire" referencing the individual being flaming, and "Ninja" in reference to being stealthy. Most often used to describe someone who is obviously gay but does not admit to it.

Dwight? Oh yeah, he's a real campfire ninja.

by 5Bones July 26, 2010

Ninja Sense

This word does not have a definition, but more of an underlying meaning that has been around since the beginning of time, kinda like the Chinese/Japanese fighter Ki (Chi/Qi) it goes:

Anyone can fix something that broken, but it takes a genies to fix something that's not broken.

I will use my "Ninja Sense" to conquer any task.

by RustyNinja June 15, 2011

Ninja Boat

A Ninja Boat is not to be confused with a Ninja Boot! A Ninja Boat is a ninja boot on a bigger less attractive female.

What Leafblowers are always on the hunt for. NINJA BOAT

by NinjaBootfiend November 15, 2007

Ninja Noodle

a very small penis

" Oh my god that guy has a Ninja Noodle!"

by Amberbamber123 January 26, 2009

Ninja Gift

Ninja Gift - To give someone a gift who is not expecting the gift. This differs from a normal gift because often the event is past and the person cannot give a gift in return, yet feels the obligation to give a gift.

"Bob Ninja Gifted me for Christmas and now I look like the ass because I didn't give him anything!"

by MysteriousJ December 20, 2008