2 definitions by Big girl panties

Refers to a woman strapping on over-sized underpants to cover her enormous lower section, to help cover her fupa as well.

Not to be confused with "big girl pants" -- which refers to being a "big girl" in the mature sense of the word. "Big girl panties" is in reference to her large bottom area UNDER her pants.
"You need to put on your big girl panties, because girl, that fupa is just horrible to look at."
by Big girl panties May 9, 2014
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It's when you're conserving the use of your toilet paper and helping the environment, when wiping your ass:

- Using a moderate amount of toilet paper folded into your hand, you make your first wipe within your ass in one vigorous swoop

- The handful of thin fabric paper in your hand now is strongly stained brown, in a streaky motion with chunks, with a strong but familiar smell

- You then flip over said layers of paper onto it's clean white side, while holding onto it by the edges, to minimize the fecal residue that is to stick to your fingers

- Then in a 2nd strong motion, you wipe your ass with this new clean side, collecting even more manure lodged between the depths of your ass cheeks

- You are then to drop said folds of toilet paper -- now doubly stained by strong, chunky fecal streaks, into the toilet

- Unravel another string of toilet paper, and repeat the process another 3-4 times, to ensure your anal region is fecal free, while being kind to the environment.
"Dude, we're running out of toilet paper kinda quick. Don't tell me you're only single-wiping! That is sooo 2015. We Double Wipe around here, like every good citizen."
by Big girl panties April 21, 2020
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