also riff-raff, late 15c., from earlier rif and raf "one and all, everybody, every scrap," also "sweepings, refuse" (mid-14c.), from Old French rif et raf, from rifler "to spoil, strip" (see rifle (v.)). Second element from raffler "carry off," related to rafle "plundering," or from raffer "to snatch, to sweep together" (see raffle (n.)).
权威例句
1. We don't want any riffraff to move into the area.
我们不希望任何乌合之众进入到这个地区。
2. Haven't you been told it's dangerous to drive alone through riffraff?
电影被删床戏;看广告免费打电话,没有人告诉过你一个人通过那段路是很危险的 吗 ?
3. Bleaching and those that you say you are a media riffraff pedophilia!