Ninjistic

The Act of performing a move like a Ninja.

Or to do something so cool it makes you look like a Ninja,
similar to calling someone a boss, or when people say "Like A Boss".

For example you might hear someone say "Dude that was so Ninjistic"

For example a Ninjistic move will be as follows,
A ninja kick to the face,
A karate chop,
Running across a wall,
Jumping really far,
to show off really good balancing skills,
or if you were to catch an object extremely quickly with barley looking at what your doing.
Or anything that is to be considered a move done by a ninja.