1 definition by Walrus, -i m.

a shirt, preferably low cut, that is tight around the bosom and then flowy from there on down; usually worn as a dress shirt to a party that will involve great quantities of good food, so that one's stomach does not appear larger.
I wore my pregnant shirt today, because Amy's mom makes so much food at her parties!!
by Walrus, -i m. December 14, 2006
Get the pregnant shirt mug.