a game or competition in which people answer questions on the subject of pop music, or a television show that includes such a game

a short, informal test that is given without any warning

We all remember the dreaded pop quiz from school and how it sometimes created that sinking feeling of being unprepared. 我们都记得学校的突击测验有多可怕，也记得这有时候会让人产生一种措手不及的沉重感觉。