Top Definition
The severe backup of semen, cum, load, in an ear. Usually caused by a 41 or 82.
Jordan Boehler got fucked in the ear so hard last night he was diagnosed with a severe and possibly fatal case of jizzbrain.
by Henry Finkler April 26, 2004

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verb. When you're deep throating a betch and you dick goes up instead of down and you ejaculate all up in there brain
Oooh I was with James last night and i totally jizz-brained his betch ass.
by Matthew The Pimp Fucker May 31, 2007

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Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

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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

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when gay men shove dicks in each others ear so much that jizz comes in contact with the brain
mike has jizzbrain
by stinky May 27, 2003

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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.

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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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When you put the tip of your dick in a girls nose and ejaculate onto her brain.
While she was sleeping I wanked in her nose and gave her mad jizz brain and she might die.
by Miacplkane December 20, 2015

The Urban Dictionary Mug

Lotsa space for your liquids.

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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.

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