Arch rogue old-fashioned slang
Used to refer to the leader of a gang of thieves or gypsies
He is an arch rogue. Be careful with him.
His name is James, an arch rogue. His accomplices often operate in this market.
A despicable or contemptible person
Used to to emphasize that attention is paid to the individuals who complain or cause problems
Sometimes, you shouldn't be so quiet because the squeaky wheel gets the grease.