The greatest movie of all time. There's so much body dismembering and excessive amounts of blood that it keeps you entertained throughout the movie.
Guy 1: Man, i saw Ninja Assassin the other day
Guy 2: Oh me too, there's so much blood i could have sworn i was watching a documentary on PMS!
Guy 1: o.O
(v.) to excessively and wildly dismember a person's body using Asian weaponry (gallons of blood are typically lost from the victim's body when being ninja assassined)
Witness 1: Dude you completely ninja assassined that guy!
Assassin: Yeah I'm going cut his limbs off too.
Witness 2: Holy shit! There's blood everywhere!
games (especially ones not centred around physical conflict), a character who has been designed expressly to be extremely powerful in a fight and/or extremely stealthy.
The term is frequently used sarcastically, as creating such a character is often a sign that the person doing so still thinks he's playing D&D
Did you see the new guy's character? He's a complete ninja assassin.