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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.
by Michael Hammond May 03, 2013
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Nov 27 Word of the Day
A stupid person; it refers to the lack of surface area on an individual's brain. The general thought is that the more surface area (wrinkles, creases, etc.) a brain has, the smarter the person is. Conversely, a person with a smooth brain (no wrinkles) has less surface area and would therefore be stupid.
That fucking smooth brain put his shirt on backwards again...

That smooth brain is dumber than a pile of shit.
by Tip Tank May 14, 2011
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Aches in the pelvic region without period. Vasocongestion (blue balls) for women. Women's genitals also become engorged with blood during sexual arousal and, like their male counterparts, women can experience pelvic heaviness and aching if they do not reach orgasm.
I was messing with my girlfriend and before i could get her to orgasm her mom came home so we stopped. The next day she was complaining that she got blue belly.
by vman1212 October 18, 2008
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A small lizard found in sunny areas. Adults have bright blue scales on their stomachs. Also called the western fence lizard.
I saw a blue belly on my last camping trip!
by newgnella June 02, 2018
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