A saying that relates to astrological signs. A person uses this saying when they believe they are unlucky. There are no 'bad signs' in astrology, but according to legend Capricorn and Scorpio are considered bad signs.
I tightly stretched my nutsack around her face ear to ear and used my flashlight to illuminate the inside of my scrote within her field of vision. She exclaimed it was the most colorful batsignal she'd ever seen.