1. To spit out or to spray particles of saliva or food from the mouth in noisy bursts.
2. To eject in short bursts with spitting or popping sounds.
3. To spit out words or sounds in an excited or confused manner; excited or confused utterances.
4. To make sporadic spitting or popping sounds: "The bonfire finally sputtered and died."
5. In physics, to cause the atoms of a solid to be removed from the surface by bombardment with atoms in a discharge tube.

1. Ejecting in short bursts with spitting or popping sounds.
2. Uttering in an excited or a confused manner.