In November 1999, Daffney debuted in World Championship Wrestling (WCW) as the mentally deranged, besotted girlfriend of David Flair, managing him and Crowbar. One of Daffney's hallmarks was a piercing scream when she was lurking at ringside. Her first appearance was on the December 6 episode of Nitro, when she was shown sitting on her bed and chanting Flair's name.
On May 8, 2000, Daffney was appointed by Vince Russo to wrestle Miss Elizabeth in Miss Elizabeth's first wrestling match. On May 15, 2000, Daffney and Crowbar defeated WCW World Cruiserweight Champion Chris Candido and his girlfriend Tammy Lynn Sytch in a mixed tag team match and were declared co-champions. The following week on the May 22 episode of Nitro, Crowbar and Daffney faced one another to determine the undisputed World Cruiserweight Champion. Crowbar held back during the match, but still dominated the smaller Daffney. After Candido entered the ring and hit Crowbar with a reverse piledriver, Daffney inadvertently pinned him while trying to revive him and thus became the second woman ever to hold the Cruiserweight Championship. Her reign lasted until June 7 when Lieutenant Loco pinned Disco Inferno in a three-way title defense while Daffney was hurt following interference from Miss Hancock. Daffney went on to feud with Hancock, who had stolen the affections of Flair. Daffney defeated Hancock in the promotion's first ever Wedding Gown match after Hancock removed her own dress. Daffney then became solely the valet for Crowbar. She had a brief feud with Shane Douglas' valet, Torrie Wilson, but was sporadically used as a wrestler.
Daffney's gimmicks included frequently changing hair color, a wide selection of T-Shirts decorated with amusing or bizarre slogans, and her loud screams. She was released by WCW on February 2, 2001.
She passed away on September 1, 2021.