Top Definition
When someone (usually a guy) won't talk to you to your face but they'll comment on your statuses/pictures, post on your wall, poke you, send you messages, "like" everything you do, and facebook chat you so much that your Facebook account exploes.
Instances of "facebook balls"
Hey, what's up? (wall post or facebook chat)
Hahahahaha (status/picture comment)
"Like"
by youwillnevagethislalalalala December 06, 2009

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A person who doesn't have the nerve to confront a person in person, but instead verbalizes and creates drama and bullshit through Facebook.
She used her Facebook Balls to tell off her friend.
by jenny10girl July 25, 2011

The Urban Dictionary Mug

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The Urban Dictionary Mug

Lotsa space for your liquids.

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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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Facebook balls refer to the harsh, rude things that people might say on Facebook that they wouldn't say in person.
Rob posted on Facebook that Larry's girlfriend is a total dog. He would have NEVER said that to his face. He's got some big FBB's (Facebook Balls). Then Larry posted back that he was gonna punch Rob in the face. The FBB's must be contagious.
by SarRobKrstisadog November 17, 2010

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