From Longman Dictionary of Contemporary Englishtalk sensetalk sensespoken to say things that are reasonable or sensible – often used when you think someone has just said something sillyTalk sense! There’s no way we can afford a new car! →sense
Examples from the Corpus
talk sense• Someone who could talk sense would get my vote, but most politicians don't.• A man talking sense to himself is no madder than a man talking nonsense not to himself.• I just want our politicians to talk sense for a change.• He had already tried to talk sense into Jotan, and had got nowhere.