Poetry. A MOUTH IN CALIFORNIA, Graham Foust's fourth book of poetry, uses the ironies and anxieties of contemporary life as a foil for mordant and sometimes violent humor. Through mangled aphorisms, misheard song lyrics, and off-key phrasing, Foust creates a unique idiom of tragicomic pratfalls, a ballet of falling down. Yet the elasticity of Foust's language repels the stiff-necked adversaries of thought: "what's the wrong way to break / that brick of truth back into music?"