Can't get the joke 4 - irons.
It goes like

Boy: My mother and father are in the steel and iron business.
Friend: Really?
Boy: Yes, my father steals, and my mother irons.

While I can understand that meaning "steals" while saying "steel" is kind of funny, I was wondering what is the meaning of "irons" here which make it a joke.

Question

Can't get the joke 4 - irons.
It goes like

Boy:	My mother and father are in the steel and iron business.
Friend:	Really?
Boy:	Yes, my father steals, and my mother irons.

While I can understand that meaning "steals" while saying "steel" is kind of funny, I was wondering what is the meaning of "irons" here which make it a joke.

Answer

Iron has two meaning. The first one is a chemical element with the symbol Fe. The second one is small appliance  to press clothes to remove creases. To iron is to remove creases with an iron. So the mother does not mine iron from iron ore, she irons clothes.

Answer

This is a play on words that sound the same but mean different things. The element of  steel vs  to steal something   and the element of  iron and the word iron as in to iron clothes.

Answer

Boy: My mother and father are in the steel and iron business.-----iron means a kind of substance here.

and my mother irons.------My mother make a living  by ironing clothes.

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