WIKIPEDIA:

“ Vulgar Display of Power is the sixth studio album by heavy metal band Pantera. It was released through Atco Records, on February 25, 1992. It is the last album where Darrell Abbott is credited as "Diamond Darrell". One of the most influential groove metal albums of the 1990s, Vulgar Display of Power is said to have played a major role in defining groove metal. Several songs from this release have become some of the band's best known, such as "Fucking Hostile", "Mouth for War", "This Love", and "Walk". The album is the band's first to be labeled with a Parental Advisory.

Title
The title of the album is from a line in the 1973 film, The Exorcist. When Father Damien Karras asks Regan MacNeil (or the demon who possesses her) to break her own straps and release herself using her evil power, Regan replies "that's much too vulgar a display of power." In April 2007 the title was used for the book A Vulgar Display of Power: Courage and Carnage at the Alrosa Villa, which includes many song titles to name its chapters. The book details those involved and the details leading up to the murder of Pantera guitarist Dimebag Darrell Abbott. [......] ”

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