The husks of grains and grasses that are separated during threshing. The farmer collected the wheat and discarded the chaff.
Amidst the valuable information, there was a lot of chaff to sift through.
Lighthearted joking or banter. The friends engaged in some chaff as they waited for the movie to start.
Strips of metal foil or metallised fibre released from an aircraft as a radar countermeasure. The pilot deployed chaff to confuse the incoming missiles.
Chopped hay or straw used as animal fodder. The stable hands mixed oats with chaff for the horses.