Professional wrestling has accrued a considerable amount of jargon throughout its existence. Much of it stems from the industry's origins in the days of carnivals and circuses. In the past, professional wrestlers used such terms in the presence of fans so as not to reveal the worked nature of the business. Into the 21st century, widespread discussion on the Internet has popularized these terms. Many of the terms refer to the financial aspects of professional wrestling in addition to in-ring terms.

Professional wrestling is a form of athletic theater that combines mock combat with drama, under the premise that the performers are competitive wrestlers. Although it entails elements of sports wrestling and martial arts, including genuine displays of athleticism and physicality before a live audience, professional wrestling is distinguished by its scripted outcomes and emphasis on entertainment and showmanship. The staged nature of matches is an open secret, with both wrestlers and spectators nonetheless maintaining the pretense that performances are bona fide competitions; this is likened to the suspension of disbelief employed when engaging with fiction.