hard sell

Noun

 * 1) A sales technique of pressuring the potential buyer to agree to a purchase.
 * 2) A sales transaction which is challenging for the sales person to make; any act or object of persuasion which is challenging.
 * 1) A sales transaction which is challenging for the sales person to make; any act or object of persuasion which is challenging.
 * 1) A sales transaction which is challenging for the sales person to make; any act or object of persuasion which is challenging.

Etymology
From.

Adjective

 * 1)  having pressure towards the potential buyer to agree to a purchase

Verb

 * 1)  to conduct a hard sell; to pressure the potential buyer to agree to a purchase