Is it just to make the script funny? I get All and Wu. They are funny, and probably historically accurate in their use of the venacular, although anacronistic. E.B Farnum's dialog seems out of place. Is it to contrast with Al? Is it to make it more"Shakesperian?"
Mr. Wu: Bok Gwai Lo... cocksucka!
Al Swearengen: Yeah, glad I taught you that fuckin' word. These are whites, huh?
Mr. Wu: White cocksucka! [shows empty bag]
Al Swearengen: Two white cocksuckers killed him and stole the dope that he was bringing to you.
Mr. Wu: White cocksucka! You, Swedgin.
Al Swearengen: [suddenly enraged] The dope that you were gonna fuckin' sell to me?
Mr. Wu: White cocksucka.
Al Swearengen: These two white cocksuckers? Who the fuck did it?
Mr. Wu: Wu?
Al Swearengen: "Who," you ignorant fuckin beloved patriot!
Mr. Wu: Wu!
Al Swearengen: Who? Who? Who stole the fucking dope?
Mr. Wu: Cocksucka!
Al Swearengen: Aw, Jesus.
Mr. Wu: Bok Gwai Lo... cocksucka!
Al Swearengen: Yeah, glad I taught you that fuckin' word. These are whites, huh?
Mr. Wu: White cocksucka! [shows empty bag]
Al Swearengen: Two white cocksuckers killed him and stole the dope that he was bringing to you.
Mr. Wu: White cocksucka! You, Swedgin.
Al Swearengen: [suddenly enraged] The dope that you were gonna fuckin' sell to me?
Mr. Wu: White cocksucka.
Al Swearengen: These two white cocksuckers? Who the fuck did it?
Mr. Wu: Wu?
Al Swearengen: "Who," you ignorant fuckin beloved patriot!
Mr. Wu: Wu!
Al Swearengen: Who? Who? Who stole the fucking dope?
Mr. Wu: Cocksucka!
Al Swearengen: Aw, Jesus.