Top Definition
An uncircumsized penis
Tim has a sea cucumber.
by punkrockerz420 October 16, 2007

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A soggy under-water dildo.
That's like saying a Sea Cucumber is like a Shark. One is a soggy under-water dildo, and the other is a killing machine.
by Faenaussa July 06, 2011

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A boner popped while one is at least 20 feet under water, commonely while scuba diving, snorkling, or swimming with Meghan Fox.
Bob, I think I may have scratched my weiner when i got that seacucumber while scubadiving in the Bahamas last week.
by Spudnigga June 22, 2011

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Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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A man with a thick and (LONG) cock. Also may smell like fish due to non-hygenic person.
Frank has a sea cucumber, its nice, but FUCK it smells!
by Frances#101 March 16, 2006

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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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A long, massive terd that is set afloat in one sitting.
Dude, i just launched a huge sea cucumber! it was HUGE!
by La'Sarah January 03, 2008

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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

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

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The disgusting sexual act of suckling another's prolapsed colon before it re-enters the body cavity.
Jim sea cucumbered John.
by teeBagger May 04, 2007

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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).

Buy the t-shirt