jaw-jaw (n.)

1610s, "to catch in the jaws, devour," from jaw (n.). In slang from 1748, "to gossip, to speak;" 1810 as "to scold." Related: Jawed; jawing. Hence 19c. U.S. slang jawsmith "talkative person; loud-mouthed demagogue" (1887), nautical slang jaw-tackle "the mouth" (1829), and the back-formed colloquial noun jaw "rude talk, abusive clamor" (1748).