- Disreputable or undesirable people: I saw the sort of riff-raff that had been invitedMore example sentences
- The reason that we bought these seats is because we don't want to be bothered with the general riff-raff.
- They let in all sorts of riff-raff here, don't they?
- While I think programs and materials for the gifted are fine and good, I worry about meetings like this in which the dominant sentiment is that the only way to educate the gifted is to remove them from the company of mere mortal riff-raff.
late 15th century (as riff and raff): from Old French rif et raf 'one and all, every bit', of Germanic origin.