Had to skool someone over at comedycentral.com's "Key & Peele" website just now:
Yuan added a comment on this | 1 month ago
I don't get it? What's fun about stretching out the word *****?
Doobie Brother replied on this | 0 secs ago
The lengthening of words in a conversation usually denotes an air of incredulity on the part of the speaker. Extending the word thusly: "b-i-i-i-i-i-i-i-i-i-tch!" and spoken with such passion, while at the same time at such low speaking volume, coupled with the protagonists' apparent trepidation at the notion of being caught in the act of such blatant and egregious spousal denigration adds humorous undertones AND overtones to the predicament of both men "fronting" about the amount, or "cache", of machismo they feel they must display to other males when talking about the notable females in their lives, since both are obviously terrified of their wives hearing themselves being referred to as "female dogs". Long explanation made short: That shit's straight up funny right there, dog.
[video=youtube_share;5LGEiIL1__s]http://youtu.be/5LGEiIL1__s[/video]