There are some spam issues in the comments, so I had to disable comment editing for a short time. It'll be back once the spam bots are gone. FYI... they leave a comment with "great" and then edit in the spam stuff later, to get around the filter.
(It's the sound ducks make, but it's also used for people, especially for women who gossip in a group. Sounds negative and dumb, so no synonym for "quatschen".)