"Where's the Beef?" is a catchphrase popularized in 1981 by a Wendy's advertising campaign. Initially highlighting Wendy’s larger beef portions, the phrase was delivered by actress Clara Peller in a humorous commercial. It quickly permeated American culture, becoming a shorthand expression questioning the substance or integrity of an idea or product. Its widespread appeal and adaptability beyond its original advertising context illustrate its enduring impact as a piece of cultural lexicon.