keis·ter
noun/ˈkiːstə(r)/
/ˈkiːstər/
(North American English, informal)- the part of the body that you sit on
屁股 - I’m not going to freeze my keister off out there.
我不会把我的凯斯特冻在那里。
Word Originlate 19th cent. (originally referring to a suitcase or box used for carrying possessions or merchandise): of unknown origin. - I’m not going to freeze my keister off out there.