Slang for Kentucky Fried Chicken.
Peter and Bobby Brady driving down the road in their swingin' conversion van...
PETER: Hey, Bobby, where do you want to go for dinner tonight?
BOBBY: How about a Mac-Wendy-King?
PETER: Hit the first burger chain we find? Nah, we do that too much.
BOBBY: Well, how about some Kunt Fuckin' Chicken?
PETER: Yeah! Now that sounds good.