The discussion revolves around finding a sexy yet tasteful Halloween costume for a party. Participants express mixed feelings about the trend of women dressing provocatively on Halloween, with some arguing that it can come off as trashy rather than sexy. Suggestions for costumes include elegant options like a form-fitting black dress that can be accessorized for various themes, such as a witch or vampire. There’s a consensus that it's possible to be sexy without resorting to revealing outfits, with ideas like dressing as a shower or using clever accessories to suggest a theme. The conversation also touches on the impracticality of skimpy costumes in colder climates, emphasizing the importance of comfort alongside style. Overall, the focus is on achieving a balance between sexy and classy for Halloween attire.