The difference between ・放る ・なげる・すてる

放る（ほうる）, 投げる（なげる）

Original meaning: throw, fling, toss, cast

捨てる（すてる）

Original meaning: discard, dump, abandon, give up

But when someone wants to discard something, he doesn't need to handle it with care.

Even if it were fragile object, he can throw it violently.

So the words "ほうる" and "なげる" are often used as the meaning of discarding.

This way of saying are common in the Kansai region in Japan.

Strictly speaking, there are minor difference between "なげる" and "すてる" as the meaning of "discard", but it is difficult to explain....