Strong Man
Badass, Iron Man, Macho Man, Tough Guy
noun
A man made of iron is a strong man... aka a huge badass. Have you seen "Iron Chef?" The Japanese translation is 料理の鉄人, which means "Chef Iron Man" aka "Chef Badass," at least in my book.
てつじん
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
うちの社長は、鉄人すぎます。
My company president is way too much of a macho man.
わたしが一番すきな番組はりょうりの鉄人です。
The TV program I like most is Iron Chef.
私はスーパーで赤ちゃんに「いないいないばぁ」をしている鉄人を見た。
I saw a tough guy playing peak-a-boo with a baby in a grocery store.