The first baby born into a group of female friends. The use of the word "beta" implies that the arrival of this child will bring out a variety of friends' personal issues and test the strength of the bonds that hold the group together.
Friend #1: "Angie never has time to go out with us anymore. She was a lot more fun before she became a mom."

Friend #2: "Uh-oh, sounds like someone's resenting the beta baby."
by Anna LeStache April 30, 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.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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

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Top Definition
The first baby born into a group of female friends. The use of the word "beta" implies that the arrival of this child will bring out a variety of friends' personal issues and test the strength of the bonds that hold the group together.
Friend #1: "Angie never has time to go out with us anymore. She was a lot more fun before she became a mom."

Friend #2: "Uh-oh, sounds like someone's resenting the beta baby."
by Anna LeStache April 19, 2011

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

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