No Gentleman is a term used to describe someone who does not behave in a manner that is considered polite or socially acceptable. The term can be broken down into four words: CAD, RAKE, ROUE, and BRUTE. CAD is an acronym for 'callous and deceitful' and is used to describe someone who is selfish and dishonest. A RAKE is someone who is known for their promiscuity and lack of moral restraint. A ROUE is someone who is a womanizer and often engages in immoral behavior. Finally, a BRUTE is someone who is violent and cruel. Together, these four words describe someone who is not a gentleman and lacks the qualities of politeness and morality.