"So, it was just spit all along." After the battle ended, Du You finally had time to look at what the long-necked giant beast had previously attacked him with. It was a thick glob of black spit, or it might be, at least.
This black matter was reeking with a horrible smell, and within it, you could see undigested traces of food. There were leaves, fruits, and even some remnants of insects. Perhaps his assumption was wrong, this giant beast was not a herbivore, but rather omnivorous. It would eat plants if it came across them and would not hesitate to devour bugs as well.
Thankfully he reacted quickly. If this substance had adhered to him, it would have been unbearable.
He couldn't even begin to guess what this stuff was. If it stuck to him and couldn't be washed off, that would be annoying.