Sentence:  Six months into their career, the Clash already showed themselves the equal of any rock band that had come before them, simply by assaulting the last frontier of rock mythology: the notion that the rock audience, like some sort of <WSD>bebopping</WSD> proletariat, was a receptacle of goodness and hope, and that rock 'n' roll offered redemption. 
Meaning of the word marked with <WSD> tags:  To participate in bebop jazz, such as by dancing in a way associated with the genre.