You have eaten too much, also known as a food baby, causing a distended belly.
After Thanksgiving, I ate too much and was in my Third Trimester, I had to roll out the door.

You don't look so good, are you in your Third Trimester after snacks at CC's?
by 91 Riv November 30, 2011
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Having sex with a woman in her third trimester, and thinking the baby touched your dick with its hand and or mouth.
I was railing my pregnant wife when I had to pull out cause I thought I was apart of a Third Trimester Threesome.
by mike mahony February 14, 2008
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