When you do something you know you're not supposed to do (whether it's good or not so good) or when you do something that other people (like your parents) don't want you to do.
by avtor17 February 07, 2018
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 21, 2019
Clog Ninja
by djsmackywas February 04, 2012
When there is visible jizz on one's pants, yet the wearer of said pants has no idea how it came (no pun intended) to be there.
Emily: Nice white splotchy thing on your crotch...
Cara: Oh, it's just the light.
Emily: Are you sure...?
Cara: Unless I'm being ninja jizzed, there is nothing there!
Cara: Oh, it's just the light.
Emily: Are you sure...?
Cara: Unless I'm being ninja jizzed, there is nothing there!
by ThatPurpleChik March 22, 2010
by Budget Ninja August 22, 2014
When you are mid-coitus and your roommate enters your dorm room. You proceed to jump off your bunk and into a snuggie (preferably mid-air) to tell them to come back later and/or warn them of the horrors going on in the room.
I had to come back to the party because Jennifer snuggie ninjaed me when i got back home. She literally jumped off the bed, tore her snuggie from a hook and jumped right into it before i got 2 steps inside.
by lars one October 04, 2010
Had a date with a really sneaky fat ninja, can't believe I didn't see her second chin in her profile pic!
by Jbomb66 December 03, 2014