IPA: /ˈpɪtʃ.mən/
KK: /ˈpɪtʃmən/
A person who sells products or promotes services, often in a lively or persuasive manner, typically in public places or through advertisements.
The pitchman demonstrated the new kitchen gadget on television, showing how it worked.
Pitchman → The word is formed from "pitch" (from Old English *piccian*, meaning to throw or to present) and "man" (meaning a person). A pitchman is a person who presents or promotes a product, often in a persuasive manner.
Think of someone 'throwing' or 'presenting' something to you — that's what a pitchman does, they present products to persuade you.