riff-raff /ˈrɪf ræf/ BrE AmE noun [plural]
an insulting word for people who are noisy, badly-behaved, or of low social class:
We charge high prices to keep the riff-raff out.
riff-raff /ˈrɪf ræf/ BrE AmE noun [plural]
an insulting word for people who are noisy, badly-behaved, or of low social class:
We charge high prices to keep the riff-raff out.
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012