From a recipient point of view, verbage refers to the "word garbage" of form letters, websites, and other official correspondence that is by nature impersonal.
From a business point of view, verbage refers to the word choice, grammar, and writing style of text for public reading. Particular word choice and structure is often discussed in a committee setting before official text is published.
John: "Oh, it's just a bunch of verbage. They didn't hire me."
I think we need to adjust the verbage I highlighted on page two. It might present a legal liability for us."
"Sure, if 'verbage' actually existed, which it doesn't."
Lance hangs his head in shame.