Define what the word "wrongun" means to you?
To me it means someone of a certain unfortunately commonm personality type. Deceitful, dishonest, lacking accountability, maybe manipulative, selfish, hypocritical, glib, exploitative, impulsive, no concern for anything beyond their own self appraisal, lacking any self awareness and what could be considered positives but arent due to the context, status seeking, confident, social minded in terms of status and others perception of them and driven.