Top Definition
a social vampire of sorts. a guy who is so desperate to have sex that he will do anything within his power to make sure that you don't.
Man, I was at the bar the other night getting ready to take Susan home, when all of a sudden Ron, the "Cock Blockula" steps in with a story about his dog dying!
by bradlay July 10, 2008

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

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The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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Someone who at every chance sucks up all the game in the room at his friends expence.
John: Aye there were like 100 girls at that last night, did you get any action?

Ryan: Not at all Gary was being such a Cockblockula! Dude he totally kicked off the Cockblocalypse.
by P.S. Foolish June 13, 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