Sangue16

Thinking of the word 'quiz' (which I'm guessing means for you in this context the same as 'test' would for us), I wonder if you can help me. What does 'pop quiz' mean? When I was a girl there was a TV programme called Pop Quiz here, which involved answering questions on pop music. I guess that's not what it means to you. I ask because it's at the beginning of REM's Imitation of Life. Also, do you know what 'water hyacinth' and 'named by a poet' mean. Are they games that American children play? I wondered if water hyacinth is that folded paper thing children make that you can open and close with fingers and thumbs to reveal choices.