An inexplicable, noticeable, callous on any little toe on one's foot which can only seem to be explained by one doing ninja like acts.
You sit and rest one foot on the table. Roommate notices an ugly yellow scab looking thing on the middle toe of your foot.
(Roommate): "Dude! How did you get that callous!?"
(You): "Wtf!? I don't know! It seems like some kind of ninja callous!"
Knowing that you weren't up to any ninja-like activities, you decide to pick at it, then realize its a piece of dead leaf.
When you nut inside without asking or without giving warning. Typically followed by by continued fornication out of embarrassment for busting so early and in hopes the ninja cream won’t be noticed.
She was absolutely doing tricks on it, so I had to give her a ninja creamy
ginger ninja a person who tries to throw water at little kids
To quit a job without anyone knowing. Be stealthy like a ninja. Just slowing pack up your stuff little by little and then never come back.
I hated that job so much that I had to ninja quit. Slowly packed up my shit and left my resignation letter in boss' letter tray.
A fierce warrior with minimal teeth however a surplus of ninja skills learned via swatting flies in the summer.
That boy his hands is quick, he’s a trailerpark ninja! - Huffman and Stefanie
The art of laying an infant down to sleep and leaving the room without making a sound
Dad: Did you put the lil monster in bed?
Mom: Sure did, used my Ninja Parenting skills to get out of the room without waking him!
Someone who is raicist and lies and stirs stuff up with other comunitys and people tend to fall for what she does
Hey look its karen the cat ninja the person no one likes