sweet talk noun 1sweet-talk verb 1forms 3 noun1 •(informal) Flattery; cajolery. sweet-talk verb1 •(informal) To influence or urge by gentle caressing or flattering.His grin faded a little. "How'd you do it? Sweet-talk one of the guards into letting you in at the head of the line?" — 1954 formssweet-talked · sweet-talking · sweet-talks