black ninja is the remnants of roaches stuck in a freezer bag. After you take out and smoke all the roaches there is a black substance at the bottom of the bag. This is called black ninja. Because it's black and it kick's your ass like a ninja.
by Dugan May 6, 2005
Get the black ninjamug. Rarely sighted in the Poughkeepsie area, Super Secret Black Ninja or SSBN for short, has madd nasty creepin skills and has the ability to fly and pull super secret sneak attacks on unsuspecting citizens. Can be seen with 005.
Oh Shit! Was that Super Secret Black Ninja over there by that pole? Lets book it out the Double Secret Probation way...
by Super Secret Squad March 22, 2009
Get the Super Secret Black Ninjamug. A nigga who know how to do them Kung-Fus real good. He got a black belly because he take so many punches right in the gut. Real strong nigga.
by BlackBellyBoy June 19, 2018
Get the Black-Belly Ninjamug.