A "rabbit trail" is a term used to describe a diversion or deviation from the main topic, idea, or conversation. It's like going down a path that leads away from where you intended to go and can be distracting or off-topic.
Sentences with «rabbit trail»
It's fun to rabbit trail once in awhile, especially if the trail leads to something worthwhile. (inc.com)
I'll continue doing that, going down whatever rabbit trail may appear. (entrepreneur.com)
Back it up with facts — not rabbit trails. (nakedpastor.com)