The ring of hair that forms around the nipple of a women after she has refused to shave for several days. The hair forms around the outer wall of the nipple and pokes up similar to that of a field of corn. The nipple resembles that of an alien space ship that has landed and then taken off.
My girlfriend Sandy walked into my room naked as a mole rat. I asked her, "Hey Sandy, will you shave your tits. You have a crop circle forming along each one which gives off a bad vibe for me and makes my dick limp."