348 Hello, is it Fellow Daoist Tyrant Flood Dragon? I would like schedule a huge tsunami in advance

What does disposable Song Shuhang mean? Does it have any close relations with disposable flying sword and disposable meteor sword?

After having this thought, Song Shuhang felt that his bladder was full—he had a sudden urge to pee…

"Senior… can you briefly explain to me the function of this 'disposable Song Shuhang 001 edition'?" Song Shuhang asked cautiously. 

"Don't worry, it's nothing outrageous." Venerable White laughed and consoled Song Shuhang, "It's a talisman treasure I developed using the 'Ten Thousand Mile Flying Escape Technique' as a base. Didn't I say yesterday that I wanted to make you experience a successful 'jump through the dragon gate'? This was made for that purpose."