Definitions
1.verbTo evacuate (saliva or another substance) from the mouth, etc.
2.verbTo emit or expel in a manner similar to evacuating saliva from the mouth; specifically, to rain or snow slightly."a hot pan spitting droplets of fat"
3.verbTo utter (something) violently.
4.verb(hip-hop) To rap, to utter.
5.verbTo make a spitting sound, like an angry cat.