1. covered or protected with iron
2. unable to be contradicted
3. a large wooden 19th-century warship with armoured plating
1. The men in that battle were ironclad
2. He was ironclad
by UD is my bible January 04, 2009

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Top Definition
Any condom made from Kevlar. The only contraceptive that is more reliable then abstinence.
"I heard you screwed Sarah last night man? Did you use protection?"

"Don't worry, I used an Ironclad. Her lower body will be numb for the rest of the week."
by Dark Doppelganger February 21, 2010

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