Noun. A bastard. The phrase kenny killer originates from the show South Park. In every episode the character Kenny is killed and Kyle calls his assailant a bastard.
1.Stan: You killed Kenny.
Kyle: YOU BASTARD!
2.You: I think the new Cartoon Network is great.
Me: You Kenny Killer!
Kyle: YOU BASTARD!
2.You: I think the new Cartoon Network is great.
Me: You Kenny Killer!
by Enigmatic Intentions June 3, 2010