<p><strong>Noun</strong></p><ul><li>Wire used to bind bales of hay.</li></ul><p><strong>Adjective</strong></p><ul><li>Informal.</li><li>In disorder: The town is haywire because of the bus strike.</li><li>Out of control; disordered; crazy: The car went haywire.</li><li>He's been haywire since he got the bad news.</li></ul>