noun. A person or band resembling the stereotype of the typical L.A. Rock Dude: expensively weathered leather jacket (probably purchased for hundreds of dollars), skinny blond girlfriend with breast implants, overly-styled hair, leathery skin caused by tanning bed and possible years of drug use.
"They're just a local band, but they're totally L.A. Nightmare. Get over yourselves."
by (evil)amy December 30, 2008