"왕서방?" where did you get this word? :)
"왕" is a surname like "김(kim)","이(lee)","박(park)" and it's originated from China.
"서방" is used when a wife call her husband in the past.
It's pretty old-fashsion, nobody calls one's husband '서방' now, but
sometimes used in a humorous way.
This term "왕서방" is well-known in Korea because the term comes out in lots of novels or movies.
Most Koreans recall a Chinese silk seller who is rich and fat.