From Longman Dictionary of Contemporary Englishknickersknick‧ers /ˈnɪkəz $ -ərz/ noun [plural] 1 DCC British English a piece of women’s underwear worn between the waist and the top of the legs SYN panties a pair of frilly knickers2 American EnglishDCC knickerbockers3 → (don’t) get your knickers in a twist
Examples from the Corpus
knickers• And if they are from Yorkshire, they are five times less likely than most women to wear knickers underneath.Origin knickers (1800-1900) knickerbockers 