the husks of corn or other seed separated by winnowing or threshing

worthless things; rubbish

he hopes to separate scientifically supported claims from pseudoscientific chaff

strips of metal foil released in the air to obstruct radar detection

light-hearted joking; banter

we used to come in for a fair amount of ribbing and good-natured chaff

tease

the pleasures of drinking and betting and chaffing your mates