Nonce
偶造语
A term describing a linguistic form which a speaker consciously invents or accidentally uses on a single occasion: a nonce word or a nonce formation (which may involve units larger than the word).
指说话人只在一个场合有意识创造或偶然使用的语言形式,又叫偶造词或偶造组合,后者包含大于词的单位。