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1.
Having ninja-like appearance or abilities.
Leonardo: Are those guys... ninjas?
Michelangelo: "Well... they're certainly ninja-esque"
by Steakface October 31, 2009
 
2.
to be crafty or stealth like in the way of the ninja.
That keylogger ninjaesquely embedded itself into my sys32 file.
by squirrelz March 07, 2010
 
3.
Haveing such extreme skillz,that you are just as talented as a ninja.Your daily life is just so extreme, you could be drafted in to a ninja army at any moment!
"Dude!i can heal myself! im totally ninja-esque!
by jess nh June 12, 2006