Chav Mentality is a phrase used to describe a person who is offended by anything (usually a harmless correction, or constructive criticism) that they do not understand. They will react in harsh tones, usually swearing or threatening the poor individual who made the original comment.
"John, you've made a spelling mistake". John who has a 'Chav Mentality' would swiftly reply with "What the fuck are you saying, that i'm thick? I'm going to bang you out bruv", or words to that effect.
by I-Am-Ozymandias September 09, 2013