"Snoop is a rat," Knight told the Page Six column of the New York Post, "He's a police informer. This is the only guy who never goes to jail no matter what. I don't like rats," TMZ.com reported.
Snoop disses Knight in the album "Rolling Stone" which hits the stores soon.
"I stepped to him at the BET Awards (four years ago)... and he was more scared than a mother****er," said Snoop of Knight.
Adding that he "never was afraid" of Knight, and "was afraid I was gonna have to kill him."
Knight retaliated by saying: "Snoop has never been in a real fight. When there's trouble, he runs to the police. He throws up and starts crying."
Notable deaths of 2014 [PHOTOS]
Ringo Starr signed up for Sketchers ad campaign