A hairstyle often chosen by women who wish to define their relationship status via their hair. It is a shorter haircut in which a good portion of the back of the neck is visible. It is a haircut that says: Back off, I'm either married or in a long-term relationship.
When I went to my class reunion, I could tell who was married and who wasn't by looking at each woman's hair. Just about all the married ones had a wifecut.