Sentence:  The predictable complaints began as soon as Extinction Rebellion launched its fortnight of protest in London, part of an international campaign of civil disobedience in as many as 60 cities worldwide. Politicians have moaned that the police are being too passive, and Boris Johnson, Britain's prime minister, labelled the protesters – who include a former Metropolitan police detective – “uncooperative <WSD>crusties</WSD>”. 
Meaning of the word marked with <WSD> tags:  A member of an urban subculture with roots in punk and grebo, characterized by antiestablishment attitudes and an unkempt appearance.