Used in ireland in towns and cities such as dublin, longford, cork etc. Used to describe a 'sham'. A sham is usually a knacker who thinks they're the shit nd they think the own the place. When the word hardy is added as the prefix you are immeadiately a hardy sham
Boy 1: Look at that sham
he thinks he owns the fuckin place man
Boy 2: yeah i know thats johnny *shouts his name*
Johnny: will yiz fuck off, for fuck sake yiz innocent little shites suck my dick little pricks
Boy1+2: ye hardy sham!