A group of...ninja mobsters. Ninjas with ties, people! NINJAS WITH TIES.
See samandfuzzy.com for further details. And a few laughs.
by wysiwyg August 12, 2004
1 more definition
The Ninja Mafia is a Super Group in the MMORPG City of Heroes. It was founded by "Star Trek Girl" and is mostly used for Role Plying purposes. Based on the Ninja Mafia from the popular web comic Sam and Fuzzy.
"That Ninja Mafia put me on their hit list!"
by STG July 27, 2007