It's a pun, sort of, in Mandarin. Either means "a few hundred words" or "some meaningless words", depending on the tone, and allowing for grammatical flexibility.
It can be prounced "gee buy zzz", (or "gee buy dzih", if that's any easier for you). These may be puns of another kind.
Take it as some kind of a hint about the content.
The name of the blog evolved into the pseudonym, Jibaizi.
