Rockism1
/ˈrɒkɪz(ə)m/Now historical
noun
The principles, ideology, or practices of the Rockites.
Origin
Early 19th century; earliest use found in Thomas Moore (1779–1852), poet. From the name of Captain Rock + -ism.
rockism2
/ˈrɒkɪz(ə)m/noun
1Adherence to a conventional or orthodox approach to rock music; (also) the belief that rock music is superior to other forms of popular music by virtue of its authenticity, artistic integrity, and lack of commercial motivation.
2A clichéd motif in rock music; a stereotypical feature of rock music or musicians.
Origin
1980s; earliest use found in Sounds. From rock + -ism.