Strange translation of a phrase

I’ve got a phrase and its translation that puzzles me completely. There isn’t any context. Here it is.

That's a pretty thing to say. – Постыдился бы!


(Постыдился бы = You should be ashamed of yourself)
But why on Earth it should be translated like that?!! I would say that “a pretty thing” is something positive not negative :?

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Originally Posted by Vadim84

I’ve got a phrase and its translation that puzzles me completely. There isn’t any context. Here it is.

That's a pretty thing to say. – Постыдился бы!


(Постыдился бы = You should be ashamed of yourself)
But why on Earth it should be translated like that?!! I would say that “a pretty thing” is something positive not negative :?

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It's sarcastic:

She is fat and smells like piss.
That's a pretty thing to say. - You should be ashamed of yourself.

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She is fat and smells like piss.

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Кто же?

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Originally Posted by basurero

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She is fat and smells like piss.

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Кто же?

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Yo mamma :P

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Originally Posted by TATY

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Originally Posted by basurero

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She is fat and smells like piss.

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Кто же?

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Yo mamma :P

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My mum's your dad.

Моя мать - твой отец!

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Originally Posted by basurero

My mum's your dad.

Моя мать - твой отец!

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She's a mother-father.

Bob's your uncle.

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It's sarcastic

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:lol: Oh shiт, why didn't I realize it myself?! It proved to be simplicity itself!

How your Himer... or Homer Simpson rather says:
D'oh!

And someone's reply will be: duh!