Girl Rays is a saying used by members of The Angels and other characters of the jamieverse when one of their number is pregnant. The women of the group will hold their palms to the pregnant woman's belly and pretend to 'shoot' it with the aforementioned 'girl rays' in the hope of making the foetus female.

The unwitting inventor of the term was Riley Fullerton in the ninth chapter of the story Charlotte, who joked about it after witnessing members of the Angels rubbing the pregnant Mary's belly.