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
Get the ninja beat mug.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
Get the boo ninja mug.by servant of the boognish November 6, 2009
Get the ninja it out mug.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!”
“Yeah that explains why my mashed taters keeps disappearing!”
by TheShuckDriver November 20, 2019
Get the Ninja Vulture mug.A sexual act performed by a man for his partner. The man will shit on the face of his partner then wipe it off of the eyes in a horizontal direction with his penis. The partner will be left with a shit-mask resembling that of a ninja. Then, the man will insert his shit-covered cock into his partner's mouth when they are least expecting it, thus leading the partner into a ninja-like attack stance by the sudden insertion.
Steve begged me for a Dirty Ninja last night but I decided to use a nicely aged Alaskan pipeline on him instead.
by DirtyNinja April 14, 2008
Get the Dirty Ninja mug.Person 1: "You better not fall asleep tonight or you`re gonna wake up with with crispy hair."
Person 2: "Why`s that?"
Person 1: Because I'm gonna crispy ninja you."
Person 2: "Why`s that?"
Person 1: Because I'm gonna crispy ninja you."
by leeroy1398 August 26, 2013
Get the crispy ninja mug.A 300cc sportbike manufactured by Kawasaki, and the motorcycle of choice of any 16-year-old mini Rossi chad squid that wants to have at least a sliver of a chance of getting insured.
by danknooner69 January 18, 2022
Get the ninja 300 mug.