Mastodonian

Noun

 * 1)  A user of the decentralized social media platform Mastodon.

Adjective

 * Of, related to, or characteristic of the American heavy metal band.
 * 1) * 2008, "Metal tracks", Heaven's Metal, February/March 2008, page 7:
 * expect fiery, blowtorch riffs and scorching solos, thundering bass, fast drumming and a wealth of Mastodonian riffery, the boys have clearly learned from their elders, and learned well!
 * 1) * 2013, Missoula Independent, 20 June 2013 - 27 June 2013, page 21:
 * The band crashes forth with guitar stomp and a short burst of bellowing vocals that fans of Big Business or the Melvins are certain to enjoy, before the track lulls the listener with an expansive Mastodonian riff and morose soundscape.