ninja beat

The act of silently masturbating while in the same bed as your significant other, likely while they are asleep.

My girl didn't want to give me head during her period week, so I had to pull off the ninja beat several times.

by Arjiff January 8, 2014

ninja it out

when in a tight situation, solve it in the most ninja like way as possible.

dude, chris was about to get capped by niko, but it he was able to ninja it out and it was cool.

by servant of the boognish November 6, 2009

boo ninja

A Boo Ninja is a man who consistently scores women which are obviously way out of his league. Most often the Boo Ninja is spotted in bars working his magic. In this setting the Boo Ninja will look much like a scout master holding court with his young charges gathered around a camp fire. But the Boo Ninja is no scout master and his charges are not suburbanites but rather really hot young women and with each word the Boo Ninja speaks his audience will either laugh or compliment him on his wisdom as each competes to be his paramour {fuck} for the evening.

"Look at that bald fat fucking old Boo Ninja... he is old enough to be their fucking grandfather, he had the damn valet park his Yugo and yet look at all of that fabulous {highly fuckable} , boo {pussy} hanging on his every word like he is some fucking mullah {Islamic preacher} issuing a fatwa {religious decree}.

by Jack Magnum, Weremo hunter November 3, 2015

Ninja Vulture

A roommate who steals your food in the fridge behind your back. They do it in a sneaky way by figuring out your schedule and stealing tiny portions when you’re at school/work.

“Dude I think Joe might be a ninja vulture.”
“Yeah that explains why my mashed taters keeps disappearing!”

by TheShuckDriver November 20, 2019

Cyborg Ninja

A title dubbed to most cyborgs for their ninja-like appearance in the Metal Gear series.
Such "Cyborg Ninja" include:
Frank Jaeger: AKA Gray Fox.
Olga Gurlukovich.
Jack: AKA Raiden.

Person 1: Man that cyber-ninja dude's cool!
Person 2: That's Gray Fox, and he's a Cyborg Ninja.

by NaixStriker May 31, 2017

ninja master

person worthy of leading a team of true ninjas (people that quietly and skillfully gets things done without drama).

Brian's a superstar at this company because he is a ninja master, and you have to be able to walk through walls to be a part of his team.

by dadlyman November 21, 2011

ninja rush

a rush of adrenaline in an unexpected moment

When you are dead asleep and something wakes you up, you jump out of bed due to a ninja rush

by atomknowsall January 8, 2011