I have a phobia of saliva- it grosses me out!
I agree with you!  Saliva is a watery substance formed in the mouth and saliva glands
Ugh I hate seeing someone spit! It's disgusting.
Saliva
Saliva is an extracellular fluid produced and secreted by salivary glands in the mouth. In humans, saliva is 99.5% water plus electrolytes, mucus, white blood cells, epithelial cells (from which DNA can be extracted), enzymes (such as amylase and lipase), antimicrobial agents such as secretory IgA, and lysozymes. 
The enzymes found in saliva are essential in beginning the process of digestion of dietary starches and fats. These enzymes also play a role in breaking down food particles entrapped within dental crevices,
a single intelligible word and attempts to communicate with gestures.
"My mouth opened and I could not speak. I wanted to say I cannot speak. At the same time, it was as if somebody was strangling me."
Hypersalivation, a prominent autonomic manifestation, is often associated with hemifacial seizures, oro-pharyngo-laryngeal symptoms and speech arrest. Hypersalivation is not just frothing:
"Suddenly my mouth is full of saliva, it runs out like a river and I cannot speak."