Wiktionary
vb. (context transitive English) To use clever talk in order to persuade someone to do something rash.
Usage examples of "fast-talk".
Bridgetown Grill was hotter still, flaring with the spit and sizzle of Jamaican cooking in the open kitchen that ran the length of the narrow gallery painted with palm trees and crowded by fast-talking dental hygienists whose glasses kept steaming up, and by white rastas whose dreads drabbled through their blackened fish and hot sauce unnoticed.
Sam Gunn, the fast-talking independent entrepreneur, had a lot to say, but the media was accustomed to Gunn's frenetic pronouncements on the evildoings of the big corporations.
Hornfel had heard the story in the gatehouse, Lavim’s fast-talking explanation as to how he came to be entering Northgate by a five-foot ledge a thousand feet above a burning valley.