sales pitch
The argument or information one presents in order to persuade someone to buy something. I hate coming into these electronics stores. Every person I ask for help has some sales pitch lined up for me. Save me the sales pitch—I'm not interested in buying this car.
sales pitch
A line of talk that attempts to persuade someone of something, as in Let's hear your latest sales pitch for energy conservation. This term uses the noun pitch in the sense of "a talk," or more literally, a throwing of words at one. [Slang; late 1800s]