look up any word, like blumpkin:
KFC, Kentucky Fried Chicken.
Wanna go to Cufk and get some popcorn chicken?
by MoonKnight February 02, 2003
A name for the area behind the knee that is unknown. It is blasphemous to exhibit your cufk in public, almost worse than public indiscretion.
The area behind the knee, where there is a burrow
by Maja M December 29, 2004