Is there a way to do an inverted rounded corner in CSS3, something approximately like the bottom left corner in the (crude) drawing below?

/-------\
|       |
|       |
|       |
| ______/
|/ <---The left side is flush (straight), the slant should be rounded

Perhaps border-radius could be combined with this technique?

Edit: I'm not looking for a speech bubble, but rather just a way to curve the right side of the point on the bottom left.

css css-shapes
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