Ninja Proofing

Setting up your house to ward off long term ninja infestations. It's considered impossible to keep ninjas out entirely. In fact, attempting to do so can attract their attention and just make the problem worse.

1) Coat the walls and ceilings with steel backed teflon. If the steel isn't thick enough, they can still use their claws. Make sure it's at least a 1/4 inch thick.
2) Install random rotating magnets. This makes it difficult to throw shurikens accurately.
3) Set up a DVD of old "Kung Fu" reruns in infinite reply. Warning: This may cause Seppuku incidents, which are really messy. Take my word on it. Spread plastic in front of the TV.

Avoid using pirates. I know it's tempting, but they're worse than ninjas (really loud and smelly and treasure chests are hard to find).
Bob: Where were you last weekend?
Bill: Sorry, spent all day Saturday Ninja Proofing.
by Al Benedict December 02, 2010
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Ninja Smoke

The ability of an individual, through luck or planning, to avoid unpleasant situations, particularly those involving law enforcement or government bureaucracy. See also: American Sniper: The Autobiography of the Most Lethal Sniper in U.S. Military History by Chris Kyle, with Scott McEwen and Jim De Felice. 2012.
"Jason went to sleep early while everyone else at the party got arrested for indecent exposure. Jason has the best ninja smoke ever."
by ajeffersonk September 20, 2013
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Nipple ninja

A person who can grope a females breasts without being caught or causing conflict
That guy is a fucking Nipple ninja
by Nothunterself December 17, 2013
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ninja mouse

A term to describe a person who has the ability to sneak out of tight situations requiring the utmost delicacy without a squeak.
Man! That chick slid out of my bed like a ninja mouse.
by BigPansy January 08, 2016
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Ninja Face

The art of using face unlock on another person's smartphone without their knowledge. Usually performed by a child from some sneaky angle while distracting the parent with other matters.
She keeps using Ninja Face on me to watch that stupid YouTube channel
by PatTheChat June 08, 2019
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Ninja Gifting

The Art of gifting an item to a friend or relative, by sneaking into their house and placing said item unwrapped among their personal belongings, in such a way they have no clue who gifted the item to them or where it came from. also can be referred to as Ghost Gifting.
I found a Venus statue in my room, I believe someone has been ninja gifting me while i was at work.
by Monroe space kraken-slayer January 18, 2012
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