<p><strong>Noun</strong></p><ul><li>a hole made by a rat, as into a room, barn, etc.</li><li>The first chore in the old building is to plug up the ratholes.</li><li>the burrow or shelter of a rat</li><li>any small and uncomfortable room, office, apartment, etc., especially one that is dirty or disordered: He lives in a rathole near the docks.</li></ul>