Requires pure stealth until the moment you scare the shit out of them by yelling NINJA at the top of your lungs just before swiftly junk punching them and disappearing into the darkness again leaving them with sore balls and a fear of the word ninja.
"Once you've been ninja junk punched you can never hear the word Ninja again without a chill of terror running up your spine."
by Momo6717 July 22, 2012

Dominant Alpha male with a body of a greek god and confidence of Hercules who asserts dominance by slicing cherries 🍒 AKA stealing your girl.
Ben: That dude is a straight fruit ninja keep an eye on ur girl.
Sally: Ur such a straight fruit ninja you made me cheat on my boyfriend..wink wink.
Sally: Ur such a straight fruit ninja you made me cheat on my boyfriend..wink wink.
by Stachebra October 6, 2022

Person 1: Remember when he pulled a drunk ninja?
Person 2: Hahaha! I do! He tried to do a back flip, but landed his ass in the dumpster!
"Drunk Ninja": I saw you pulling a drunk ninja last week!
Person 2: Hahaha! I do! He tried to do a back flip, but landed his ass in the dumpster!
"Drunk Ninja": I saw you pulling a drunk ninja last week!
by Sober Ninja March 21, 2011

Person 1: IM TIRED SEEING U PLAYING NINJA FARTNITE SIMULATOR!11!
Person 2: bro you should play it
Person 1: Nevermind, this is a fu- i mean dead game
Person 2: bro you should play it
Person 1: Nevermind, this is a fu- i mean dead game
by fywmblox December 24, 2021

The way a person would be able to sneak into a room without you or anyone else noticing that they just entered.
A group of people are talking in a circle.
Person A walks behind everyone.
Person B -turns around sees the person just sitting there randomly-
Person B: Dude You're A NINJA!!
Person A walks behind everyone.
Person B -turns around sees the person just sitting there randomly-
Person B: Dude You're A NINJA!!
by Thequestioniswhoareyou February 26, 2011

a hare-brained, living underwater-type adventure planned, usually, by a scatterbrain and that's doomed to fail from the start
by Sexydimma January 12, 2017

the act of busting a nut, blowing a load or skeet skeet skeeting on someones back and then slapping a pillow on that persons back making them look like a turtle skeet superman ninja turtleho
by Special buddies March 25, 2008
