Custom BBCode help needed

[BasicGreatGuy]

I saw the BBCode pictured below on another forum and would like to use the same kind of thing on the forum I am with. I don't know how to get the BBCode set up where it looks like the picture.

Is there anyone that knows how to do this and would be willing to help me out?




That is all that they have posted on their site for people to see.

[seinfeld=Kramer]Your text here.[/seinfeld]

[seinfeld=Kramer]I must have been out of my mind. Look at you. Why don't you do something with your life? Sit around here all day, you contribute nothing to society. You're just taking up space. How could I be with someone like you? Couldn't respect myself.[/seinfeld]