[Oratam]

You learned it right.

I think remember the first time I saw the two gestures combined. I thought something like, “Is that really necessary?”

Now, I regard it as adding an exclamation point.

...and I’m only one generation removed from Hell’s Kitchen.

[Cletus.D.Yokel]

Knew an Italian fellow that would use the arm gesture and, for emphasis, he said, he would hesitate then explode the fingers of hand at the end.

[meyer]

I think remember the first time I saw the two gestures combined. I thought something like, “Is that really necessary?”

Ahhhh yes, the old 'double innuendo'.