There is no specific word for the husband of your wife's sister. If you need a phrase, call him your "sister-in-law's husband."
My wifes brother in law!
sisters in law
She is your sister-in-law.
Brother-in-law.
your brother-in-law :)
Your sister-in-law.
I think it is appropriate to call him your brother.
Phillipp uncle
Your sister in law is your husband's sister or your brother's wife.
Jijaji- brother in law
would it be a brother in law? not sure about this one! Is it your husband/wifes daughters brother?
would it be a brother in law? not sure about this one! Is it your husband/wifes daughters brother?