Boudreaux and Thibodeaux are neighbors in Breaux Bridge, and Boudreaux is in need of a new milk cow.
He hears about a nice one for sale over in Lafayette. He drives over to Lafayette, looks at the cow, and reaches under to see if she gives milk. When he grabs her closest teat and pulls, the cow farts. Boudreaux is very surprised, looks at the farmer who is selling the cow, and reaches under the cow to try again. So, he grabs another teat, pulls, and the cow farts again. Milk does come out however, so after some discussion Boudreaux decides to buy the cow anyway and take it home.
Boudreaux calls his neighbor Thibodeaux over and says, "Come here and look at dis new cow I just bought. Pull her teat, and see what happens." Well, Thibodeaux reaches under and pulls, and the cow farts.
Thibodeaux looks up at Boudreaux and says, "Did you buy dis cow in Lafayette, Boudreaux?"
Boudreaux is very surprised and says, "Dats right, how did ya know that, cher?"
Thibodeaux says, "My wife...she's from Lafayette, too!