Watch The Grim Adventures of Billy and Mandy Season 6 Episode 20 Online with Multi Subtitles - NetPrime

Watch Watch The Grim Adventures of Billy and Mandy Season 6 Episode 20 Online with Multi Subtitles - NetPrime on NetPrime - At a school fair, Grim's scythe accidentally transforms the boring Principal Goodvibes and his hippopotamus into gangster rappers, with Goodvibes now calling himself Principal Goodbling. Subsequently, Goodbling changes the entire school to be more hip-hop oriented, much to Mandy's dismay. Although Grim initially likes the principal's new style, he eventually comes to believe that Goodbling is just an impostor and goes to confront him, but Goodbling retaliates with jokes about others' mothers. Irwin's grandmother, Tanya, confronts Goodbling and proves to be better than him at making jokes about others' mothers, causing Goodbling to revert back to being the boring Goodvibes.