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A ninja that uses poisons and toxins to kill his targets. Think a smokebomb full of mustard gas, or poisoning drinks, poison dipped weapons, etc.
Guy1: Hey why are you vomiting blood?
Guy2: Toxic Ninja poisoned my drink, if I die tell my girlfriend I love her.
Guy1: Don't worry, I'll tell her I love her.
Guy2: Wut?
by Toxic Ninja January 16, 2008
A drink that consists of grapejuice, rum, and sugar

"mmm this is deliciously squizito"
"what is it?"
"a toxic ninja"
by YoungYulia September 14, 2006