"Loose talk" refers to talking without thinking carefully or in a careless and uncontrolled manner. It often involves saying something inappropriate, untruthful, or gossiping without considering the consequences. Full definition
«There has been a lot of loose talk about region - specific climate modification. (sciencedaily.com)
There has been a lot of loose talk from people who know very little about education (or testing) to the effect that teachers must be «evaluated» on «test results.» (b4njkids.org)
It stings like a burn,» Nonetheless, he continues to rant against «a lot of loose talk nowadays» that he sees as faddish idealism. (religion-online.org)