Peterson's Elvira character rapidly gained notice with her tight-fitting, low-cut, cleavage-displaying black gown. Adopting the flippant tone of a California "Valley girl", she brought a satirical, sarcastic edge to her commentary. She reveled in dropping risqué double entendres and making frequent jokes about her cleavage. In an "AOL Entertainment News" interview, Peterson said, "I figured out that Elvira is me when I was a teenager. She's a spastic girl. I just say what I feel and people seem to enjoy it." Her campy humor, sex appeal, and good-natured self-mockery made her popular with late-night movie viewers and her popularity soared.