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1.
Another term for the various vocal stylings of genres related to progressive death metal. The vocals are incoherent growls, similar to those of Cookie Monster himself.
"Hey, can you understand what these motherfuckers are saying?"
"I don't think anybody can with those cookie monster vocals."
by rpg June 11, 2006
 
2.
A slang term for the vocal styles in virtually all death metal songs, which are low growls. They are named after the famous Sesame Street character of the same name. It's unknown when the term first came about, but the term can be both used by people who either like or dislike death metal.
"Hey, do you know what that guy's saying? It's terrible, I can't understand him at all!"
"Idk, they're cookie monster vocals. You're not really supposed to focus on the lyrics anyway. Who the fuck cares what he's saying? Enjoy the brutality of the music, dipshit!"
by tsman29 February 17, 2008