Definition of "grotty"

grotty¹

adjective
comparative grottier, superlative grottiest
1. (slang, British, Canada, Australia, New Zealand) Unpleasant, dirty, slovenly or offensive.
  Quotations
  George: I wouldn't be seen dead in them. They're dead grotty.Simon: Grotty?George: Yeah, grotesque.
  1964, Alun Owen, A Hard Day's Night

grotty²

adjective
comparative grottier or more grotty, superlative grottiest or most grotty
1. Alternative form of groaty