/'nɪkəz; `nɪkɚz/
n [pl]
1 (Brit) woman's or girl's underpants （女用）内裤
*a pair of knickers 一条女用内裤.
2 (US) = knickerbockers.
3 (idm 习语) get one's `knickers in a twist (Brit sl 俚) become angry, confused, nervous, etc; react to sth more strongly than is necessary 恼火、困惑、紧张等; 对某事物反应过激.

n [plural]
[Date: 1800-1900; Origin: knickerbockers]
BrE a piece of women's underwear worn between the waist and the top of the legs
= panties
　a pair of frilly knickers
AmEknickerbockers
(don't) get your knickers in a twist
BrE spoken used to say that someone is upset, or to tell someone not to get upset