/rif"raf'/ , n.
1. people, or a group of people, regarded as disreputable or worthless: a pack of riffraff.
2. the lowest classes; rabble: the riffraff of the city.
3. trash; rubbish.
adj.
4. worthless, disreputable, or trashy.
[ 1425-75; late ME rif and raf every particle, things of small value rif et raf, formed on rifler to spoil (see RIFLE 2 ), raffler to ravage, snatch away ]