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
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

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