Used to strongly praise or agree with someone's suggestion.
“That's a great idea - we could split the cost of the rental car.”
“That's a great idea! Let's ask the neighbor if she wants to carpool too.”
This enthusiastic agreement phrase often marks a clear decision point in Listening Part 1's problem-solving conversations. When you hear it, the speakers are very likely about to move forward with that specific suggestion, so it's useful for 'what will they do' questions. It shows stronger approval than a simple 'okay' or 'sure.'
Synonyms: what a great suggestion, brilliant idea, I love that idea