Penis Ninja

A person sent in deliberately to have sex with someone's girlfriend with the intention of her significant other catching them in the act so he breaks up with her.

Jeff: "Dude, Seth's old lady is such a bitch!"
Steve: "Send in the penis ninjas..."

Penis Ninja by TK37246 February 12, 2014

Fiesta Ninja

The act of sneaking food so that no one notices you.

Jason: At Michaels party I was a fiesta ninja because i was on a diet and i wanted no one to notice me take all those burritos.

Example 2: At night when my parents are sleeping i have to be a fiesta ninja or they catch me taking the twinkies!

Fiesta Ninja by dorkwithpork March 14, 2014

pants ninja 

(noun) A pants thief. One who steals pants by any means necessary. Rather be with wit, humor, charm or by whipping out his katana, the pants will be surrendered.

"Watch out for that pants ninja, he got my girl pregnant."

pants ninja by PantsNinja February 8, 2015

Pootang Ninja 

A skilled master in the art of getting the Pootang .

Whoa bro, I didn't know i hang with a Pootang ninja. Can you me show your ways?

Pootang Ninja by Joboy232 October 18, 2015

grass ninja 

Person who does not ever buy weed, but always smokes others. Mooching off of smoking circles or other social groups.

"Was Roy at the party?"
"Yeah man, he was a Grass Ninja like always and smoked all our weed and left."

grass ninja by ThatGuy85 March 29, 2016

Tinder Ninja 

A person of male gander who makes a somewhat fake rinse profile to meet women to just sleep with them only performing the Ninja sexual and then disappearing from their lives forever into the shadows.

All of a sudden, all of the local girls have become pregnant. Officers suspect an ultimate tinder ninja.

Tinder Ninja by wnigwigga July 12, 2016

slick ninja 

Stealthy and sly.

Banksy is one heck of a slick ninja with the way he puts up Street Art.

slick ninja by DolinDog June 8, 2016