Top Definition
An older, confrontational woman who immediately has to establish herself as the alpha in any group setting. She can do this easily by asking inappropriate questions about her offspring's' sexual histories. This woman will seek alpha status by cornering all males in her immediate vicinity with her inane questions and strikingly annoying mannerisms.
Dude #1: Damnit man, that old cunt has me cornered with her stupidity. Can't I just have a drink in peace.
Dude #2: Not a chance, she's a fucking grade A Ironbox.
by Phatty99 June 07, 2006
A girl who will not (for whatever reason) put out.
Person 1: "Damn, I've been dating (Insert name) for three months and I still haven't gotten her into bed."
Person 2: "Ah, she's an iron box."
by *ABCD* May 16, 2010
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