It is from Robert's Rules of Order. It is only used in places where something similar to Robert's Rules are used (parliament, congress, associations with by laws that call for them). But mostly governing bodies.

Technically, it's used in the Robert's rule of Order situation as described by Zachary. (Given what pt you seem to beo be studying, you might want to at least look at something like the Wikipedia article on Roberts. Don't try to read the rules themselves, except to get a feel for them. Your head will explode.) It's also used in a casual sense when someone, say at a party or some event, talks longer than they should and "propounds" on a subject. It's not particularly common, but you will hear it.