How to bind to M-"

[Mirko]

Hello,

I would like to bind a command to the Escape + quote `"' character
sequency.

I tried a few combinations of "M-" and  \", ?\", but none work.  What
is the official way?

Since we are at it, how would one create a string of five double
quotes using make-string:
I tried

(make-string 5 \")


Thank you,

Mirko