This is commonly seen in older horses and ponies with poor dentition, where food falls from the mouth whilst they are chewing. When eating normally, the horse's tongue forms a bolus (saliva covered lump of food) so that it can be swallowed. If this bolus is dropped out of the horse's mouth, or if a horse persistently drops partially chewed food while eating, this is referred to as quidding and indicates a problem in the horse's mouth.