"Spitting" Natural Recordings by Native Speakers
To spitting means to force out saliva, mucus, or another substance from the mouth in a sudden, sharp movement, often as a way of expressing disgust, annoyance, or to clear the mouth. It can also be used metaphorically to describe something that is an unwelcome or unpalatable element or situation. Ex: "I couldn't handle the spicy food and started spitting it out."
I think you may have meant "spiteful" or possibly "spurious". However, I'm not familiar with the word "spitous". If you could provide more context or information about where this word comes from, I'd be happy to try and help you understand its meaning.