A chivala is an old slang word used by South Siders and Pisas that insults a man's masculintiy. To call a man a chivala is like calling him a bitch, or a punk, or something feminine and less than a man. A chivala is like a person who drinks dirty toilet water, who will not fight and would rather run or hide than stand up for himself.
"See that chivala over there? I just took all of his shit!"