Twilled fabrics such as whipcord, gabardine and serge are often made from worsted yarn. Films included "Be My Guest" and "House of Whipcord". This word usage derives from using whipcord to tie things together. House of Whipcord is a 1974 horror exploitation film directed by Pete Walker. Whipcord should not be confused with corduroy. Arisaema tortuosum, the whipcord cobra lily, is a plant species in the family Araceae. He was well-built and wore a whipcord suit and a battle jacket with bright buttons. Whipcord has a hard smooth finish with diagonal ribs. Whipcord is the name for either a fabric or a form of braided cord. In the latter case, whipcord is an alternative to duck, which has a different weave.