have a cast iron stomach

[Kati Svaby]

English Language Tests, Intermediate level

ESL/EFL Test #316 "English Slang Idioms (37)", question 6

He thought his son must have a ......... iron stomach when he saw him eating the spicy Thai curry.

(a) wrought
(b) faux
(c) plate
(d) cast

English Language Tests, Intermediate level

ESL/EFL Test #316 "English Slang Idioms (37)", answer 6

He thought his son must have a cast iron stomach when he saw him eating the spicy Thai curry.

Correct answer: (d) cast
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Doesn't "a cast iron stomach" means a stomach which is very strong than the cast'iron.
cast'iron can be an adjective that's why I thought for this.
Thanks:
Kati Svaby
_________________
Don't walk behind me; I may not lead. Don't walk in front of me; I may not follow. Just walk beside me and be my friend.

[Kati Svaby]

Hello Bz,

I would like to share with you these sentences. I found in TOEFL discussion 26.

"W: Toy soldiers. He makes them. He's got a whole army in our basement- Bengal Lancers, Soaves, Beefeaters, hussars, you name it!- he casts 'em in lead, paints 'em, puts 'em in little, uh, dioramas, you know what I mean? He's good at it, too."

Have a good day:
Kati
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Don't walk behind me; I may not lead. Don't walk in front of me; I may not follow. Just walk beside me and be my friend.