1. noun Speech that is fervent, persuasive, glib, and (usually) manipulative or deceptive in intention. These door-to-door salesmen are adept at fast talk, trying to convince you to buy something before you can consider the purchase properly. The CEO always had a lot of fast talk lined up if anyone challenged the ethics of the company's business transactions.

2. verb To speak in a fervent, facile, and (usually) manipulatively or deceptively persuasive manner. In this usage, it is usually hyphenated. Be careful when you speak to the police—their detectives could fast-talk you into believing you'd killed your own mother.