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 shorty shit-stain November 05, 2009
1 more definition
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