This includes saliva, water, chewing tobacco, etc.
3) To proverbiably make a grand show of disrespect towards values, rules, ideas, etc. Followed by 'on', 'upon', etc.
2) Randy drools while he sleeps, which explains the large puddle of spit on and around his desk.
3) After hearing me out, Randy spat upon my values and lied to his mother about the muddy hiking boots.