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Jacking off or masturbating in a ninja-like manner, often in public places like bathroom stalls or school buses.
You can go in the bathroom there, but be sure to ninjackoff so you won't be noticed
by Timelinemc February 15, 2011
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Jun 21 Word of the Day
A person with an outwardly dominant, masculine, or aggressive personality, but who also enthusiastically takes on the submissive or "bottom" role in the bedroom.
"I'm tough, Mike! I never give an inch! I'm partial to taking a few though..."
"Ah, you're a real pipehitter."
by Skeletalchemy June 15, 2021
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