to ransack something; to search quickly or roughly through something looking for something. The teenager quickly rifled through the cabinets, looking for something worth eating. The soldiers rifled through every house they could break into. rig someone or something out (in something) to outfit someone or something in something; to decorate or dress someone or something in something. (Alludes to the rigging of a sailing ship.) Joan rigged her daughter out in a witch's costume for the Halloween party. He rigged out his car with lights for the parade.