This is not solely applicable to blokes, females can also get a second asshole, so feminists eat your fucking hearts out. The phrase originated in the UK where it was usually “ripped him a second arsehole” but over time the spelling changed. The original meaning was to attack someone, usually unexpectedly, brutally and viciously so that they were completely
overwhelmed and unable to defend themselves. It can also mean to criticise someone’s thoughts, ideas or lifestyle either with or without cause or
justification. The usually accepted definition is that which is applied to the workplace where it means to reprimand someone so totally and effectively, that the person on th receiving end wishes they could crawl
under the carpet and die. So if you have ripped him/her a second asshole you have delivered a rebuke of epic proportions.