On "Seinfeld", what is Elaine's nickname for Sue Ellen Mischke?

On "Seinfeld," Elaine's nickname for Sue Ellen Mischke is "The Braless Wonder."

Sue Ellen is Elaine's former schoolmate, rival, and the heiress to the Oh Henry! candy-bar fortune. Elaine's nickname refers to Sue Ellen's habit of going without a bra, which becomes a recurring source of Elaine's jealousy and irritation.

The rivalry is especially prominent in "The Caddy," a Season 7 episode from 1996. Elaine gives Sue Ellen a bra, but Sue Ellen defiantly wears it as a top. Jerry and Kramer spot her, and Kramer crashes George's car while watching her walk by.

Sue Ellen appears in several episodes, including "The Bottle Deposit," "The Abstinence," and "The Betrayal." The nickname is sometimes written "Bra-less Wonder," but both forms refer to the same canonical joke and character.