Top Definition
Pl. n. Two dudes that have had sex with the same chick, not necessarily at the same time.
Mike had relations with Annie, so did Bill. Bill and Mike are now cock brothers.
by Tyrone 667 January 08, 2007

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One who partakes in intercourse with a lady, who has had intimate relations with a close friend.
Me and me mate are cock brothers 3 times over.
by Joe Mc May 24, 2008

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