In contemporary internet culture and social media slang (such as on TikTok or X/Twitter), these words carry specific, informal meanings:
The name perfectly plays on the famous alkaline "dust" of the Black Rock Desert and the vehicle's large, rounded, geometric physical structure. 3. Indie Music and Underground Culture free dusty busty
Because the exact phrase is not part of the mainstream lexicon, it likely originates from one of a few highly specific areas: 1. Rhyming Internet Slang and Memes In contemporary internet culture and social media slang