Other forms: offings
The offing is what's predicted or promised in the future. If you accompany your friend to a family gathering but there doesn't seem to be any food available, you might ask if any snacks are in the offing.
In the offing means "impending" or "in the near future." When your teacher tells you a quiz is in the offing this week, you know it's time to study for it. Offing's nautical meaning is the most distant part of the ocean seen from land, or an area that's far enough from the shore that it's safe for a ship to travel. This literal "at a distance" definition led to the figurative use that's more common today.