To bite and grind with the teeth; masticate, as food, preparatory to swallowing and digestion.Figuratively, to ruminate on in the thoughts; meditate on.Synonyms Bite, Gnaw, etc. See eat.To perform the act of biting and grinding with the teeth; champ; ruminate. SpecificallyTo press or grind tobacco between the teeth for the sake of its flavor or stimulating effects.Figuratively, to meditate; reflect.n. That which is chewed; that which is held in the mouth at one time; especially, a quid of tobacco.