Shortened version of 'American Head Charge'. A rather inspiring band with interesting disharmonies. Known by few select connoisseurs of the metal genre, and used in colloquial terms amongs such factions.
AHC is short for Aging Hippie Central. It is not a specific location, but generally a gathering of aging hippies in their 60s and 70s. Favorite activities include dancing to annoying Eastern-European folk music, mocking Republicans, and being hippies.