When a girl gets cramps in her stomach (
technically in her ovaries) after having intense
sexual intercourse but without achieving orgasm. It is NOT the cramps a girl gets when she is on her period. Blue belly is basically the female version of blue balls, although unlike blue balls, it can only happen during intercourse, as opposed to
masturbation. It's also less common than blue balls, but the pain can still be quite intense and can last for up to several hours.
Jacob: Hey baby, time to wake up.
Alissa: Ohhh...
I don't feel good. My stomach really hurts.
Jacob: Do you need me to call a doctor?
Alissa: No, it's just that when we had sex
last night, I was so close but then you
pulled out anyway like an asshole... and so I just lay awake all night with blue belly.