Top Definition
Most commonly when a girl's breasts are so tightly squeezed into a dress/shirt that they are ALMOST falling out. Also if the shirt is too low, or doesn't have enough coverage.

Can also be used if the girl's breasts have actually fallen out of the garment.
EXAMPLE #1:

Honey, you might want to readjust your dress, you're popping out.

EXAMPLE #2:

I was so drunk, I was stumbling all over the place, and my shirt was so low I actually popped out of it, and I didn't notice until Karen pointed it out to me!! I was so embarrassed!
by noenemies August 19, 2008

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Giving birth, reproducing, rolling a baby off the conveyor belt.
Not long after having her fourth kid, she was on her way to popping out another one.
by flamingpanties May 06, 2011

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt