Top Definition
the police, FBI, DEA or any law enforcement agent looking to bust someone.
the blue ninjas are everywhere. protect ya neck! don't get popped and have to go upstate.
by shortyshitstain November 05, 2009
7 Words related to blue ninja
That feeling you get when you pop a four inch wide boner!
man.. yeah, that girl gave me a blue ninja!
by lil bo peep July 14, 2003

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